25321123887504 has 80 divisors (see below), whose sum is σ = 67524435492864. Its totient is φ = 8167930473600.

The previous prime is 25321123887487. The next prime is 25321123887509. The reversal of 25321123887504 is 40578832112352.

It is a super-3 number, since 3×25321123887504³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (25321123887509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82298017 + ... + 82605119.

Almost surely, 2^{25321123887504} is an apocalyptic number.

25321123887504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

25321123887504 is an abundant number, since it is smaller than the sum of its proper divisors (42203311605360).

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

25321123887504 is a wasteful number, since it uses less digits than its factorization.

25321123887504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362556 (or 362550 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 51.

Adding to 25321123887504 its reverse (40578832112352), we get a palindrome (65899955999856).

The spelling of 25321123887504 in words is "twenty-five trillion, three hundred twenty-one billion, one hundred twenty-three million, eight hundred eighty-seven thousand, five hundred four".