25250352064 has 28 divisors (see below), whose sum is σ = 57264192304. Its totient is φ = 10821579264.

The previous prime is 25250352013. The next prime is 25250352067. The reversal of 25250352064 is 46025305252.

It is a tau number, because it is divible by the number of its divisors (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25250352067) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28180749 + ... + 28181644.

Almost surely, 2^25250352064 is an apocalyptic number.

It is an amenable number.

25250352064 is an abundant number, since it is smaller than the sum of its proper divisors (32013840240).

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

25250352064 is an equidigital number, since it uses as much as digits as its factorization.

25250352064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56362412 (or 56362402 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

The spelling of 25250352064 in words is "twenty-five billion, two hundred fifty million, three hundred fifty-two thousand, sixty-four".