25652031008 has 54 divisors (see below), whose sum is σ = 52836583527. Its totient is φ = 12258396480.

The previous prime is 25652030993. The next prime is 25652031037. The reversal of 25652031008 is 80013025652.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 12826015504 + 12826015504 = 113252^2 + 113252^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=113252.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 20837753 + ... + 20838983.

Almost surely, 2^25652031008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25652031008

25652031008 is an abundant number, since it is smaller than the sum of its proper divisors (27184552519).

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

25652031008 is an frugal number, since it uses more digits than its factorization.

25652031008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518 (or 1256 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Multiplying 25652031008 by its sum of digits (32), we get a square (820864992256 = 906016²).

25652031008 divided by its sum of digits (32) gives a square (801625969 = 28313²).

The spelling of 25652031008 in words is "twenty-five billion, six hundred fifty-two million, thirty-one thousand, eight".