25344685504 has 56 divisors (see below), whose sum is σ = 55242195840. Its totient is φ = 11483391744.

The previous prime is 25344685493. The next prime is 25344685507. The reversal of 25344685504 is 40558644352.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25344685507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425134 + ... + 481069.

Almost surely, 2^25344685504 is an apocalyptic number.

It is an amenable number.

25344685504 is an abundant number, since it is smaller than the sum of its proper divisors (29897510336).

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

25344685504 is a wasteful number, since it uses less digits than its factorization.

25344685504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906257 (or 906247 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 46.

The spelling of 25344685504 in words is "twenty-five billion, three hundred forty-four million, six hundred eighty-five thousand, five hundred four".