25752602628 has 18 divisors (see below), whose sum is σ = 65096856734. Its totient is φ = 8584200864.

The previous prime is 25752602621. The next prime is 25752602647. The reversal of 25752602628 is 82620625752.

It can be written as a sum of positive squares in only one way, i.e., 20241321984 + 5511280644 = 142272^2 + 74238^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (25752602621) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357675001 + ... + 357675072.

Almost surely, 2^25752602628 is an apocalyptic number.

It is an amenable number.

25752602628 is an abundant number, since it is smaller than the sum of its proper divisors (39344254106).

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

25752602628 is a wasteful number, since it uses less digits than its factorization.

25752602628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715350083 (or 715350078 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 25752602628 in words is "twenty-five billion, seven hundred fifty-two million, six hundred two thousand, six hundred twenty-eight".