25000000000000 has 195 divisors, whose sum is σ = 62492370603421. Its totient is φ = 10000000000000.

The previous prime is 24999999999983. The next prime is 25000000000013. The reversal of 25000000000000 is 52.

The square root of 25000000000000 is 5000000.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 23935108091904 + 1064891908096 = 4892352^2 + 1031936^2 .

It is a sliding number, since 25000000000000 = 5000000000000 + 20000000000000 and 1/5000000000000 + 1/20000000000000 = 0.00000000000025000000000000.

It is a hoax number, since the sum of its digits (7) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an enlightened number because it begins with the concatenation of its prime factors (25).

It is a junction number, because it is equal to n+sod(n) for n = 24999999999893 and 24999999999902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 4999999999998 + ... + 5000000000002.

Almost surely, 2^{25000000000000} is an apocalyptic number.

25000000000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

25000000000000 is the 5000000-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25000000000000

25000000000000 is an abundant number, since it is smaller than the sum of its proper divisors (37492370603421).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25000000000000 is an frugal number, since it uses more digits than its factorization.

25000000000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 7 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 7.

Adding to 25000000000000 its reverse (52), we get a palindrome (25000000000052).

It can be divided in two parts, 2 and 5000000000000, that multiplied together give a 13-th power (10000000000000 = 10¹³).

The spelling of 25000000000000 in words is "twenty-five trillion", and thus it is an aban number and an uban number.