10256640925 has 12 divisors (see below), whose sum is σ = 12773780020. Its totient is φ = 8169477120.

The previous prime is 10256640887. The next prime is 10256640929. The reversal of 10256640925 is 52904665201.

10256640925 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 530933764 + 9725707161 = 23042^2 + 98619^2 .

It is not a de Polignac number, because 10256640925 - 2¹¹ = 10256638877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10256640929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 890052 + ... + 901501.

Almost surely, 2^10256640925 is an apocalyptic number.

It is an amenable number.

10256640925 is a deficient number, since it is larger than the sum of its proper divisors (2517139095).

10256640925 is a wasteful number, since it uses less digits than its factorization.

10256640925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791792 (or 1791787 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 40.

The spelling of 10256640925 in words is "ten billion, two hundred fifty-six million, six hundred forty thousand, nine hundred twenty-five".