25388703164 has 12 divisors (see below), whose sum is σ = 48469342488. Its totient is φ = 11540319600.

The previous prime is 25388703163. The next prime is 25388703173. The reversal of 25388703164 is 46130788352.

It is a super-2 number, since 2×25388703164² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25388703161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288507947 + ... + 288508034.

It is an arithmetic number, because the mean of its divisors is an integer number (4039111874).

Almost surely, 2^25388703164 is an apocalyptic number.

It is an amenable number.

25388703164 is a deficient number, since it is larger than the sum of its proper divisors (23080639324).

25388703164 is a wasteful number, since it uses less digits than its factorization.

25388703164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577015996 (or 577015994 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 25388703164 in words is "twenty-five billion, three hundred eighty-eight million, seven hundred three thousand, one hundred sixty-four".