25023696156 has 36 divisors (see below), whose sum is σ = 63585535104. Its totient is φ = 8297558400.

The previous prime is 25023696127. The next prime is 25023696157. The reversal of 25023696156 is 65169632052.

25023696156 is a `hidden beast` number, since 2 + 5 + 0 + 23 + 6 + 9 + 615 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25023696157) 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, 1812765 + ... + 1826516.

It is an arithmetic number, because the mean of its divisors is an integer number (1766264864).

Almost surely, 2^25023696156 is an apocalyptic number.

It is an amenable number.

25023696156 is an abundant number, since it is smaller than the sum of its proper divisors (38561838948).

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

25023696156 is a wasteful number, since it uses less digits than its factorization.

25023696156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3639482 (or 3639477 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 25023696156 in words is "twenty-five billion, twenty-three million, six hundred ninety-six thousand, one hundred fifty-six".