25252752775 has 12 divisors (see below), whose sum is σ = 31373532144. Its totient is φ = 20163416000.

The previous prime is 25252752773. The next prime is 25252752787. The reversal of 25252752775 is 57725725252.

It is a happy number.

It is not a de Polignac number, because 25252752775 - 2¹ = 25252752773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25252752773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 956371 + ... + 982420.

It is an arithmetic number, because the mean of its divisors is an integer number (2614461012).

Almost surely, 2^25252752775 is an apocalyptic number.

25252752775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25252752775 is a deficient number, since it is larger than the sum of its proper divisors (6120779369).

25252752775 is a wasteful number, since it uses less digits than its factorization.

25252752775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1939322 (or 1939317 counting only the distinct ones).

The product of its digits is 3430000, while the sum is 49.

The spelling of 25252752775 in words is "twenty-five billion, two hundred fifty-two million, seven hundred fifty-two thousand, seven hundred seventy-five".