25787156632 has 32 divisors (see below), whose sum is σ = 48848436000. Its totient is φ = 12761051904.

The previous prime is 25787156621. The next prime is 25787156641. The reversal of 25787156632 is 23665178752.

It is a happy number.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25787156632.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1597948 + ... + 1614004.

It is an arithmetic number, because the mean of its divisors is an integer number (1526513625).

Almost surely, 2^25787156632 is an apocalyptic number.

It is an amenable number.

25787156632 is a deficient number, since it is larger than the sum of its proper divisors (23061279368).

25787156632 is a wasteful number, since it uses less digits than its factorization.

25787156632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18115 (or 18111 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 52.

The spelling of 25787156632 in words is "twenty-five billion, seven hundred eighty-seven million, one hundred fifty-six thousand, six hundred thirty-two".