64125504 has 84 divisors (see below), whose sum is σ = 185202576. Its totient is φ = 21212928.

The previous prime is 64125493. The next prime is 64125511. The reversal of 64125504 is 40552146.

It is a super-2 number, since 2×64125504² = 8224160526508032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93547 + ... + 94229.

Almost surely, 2^64125504 is an apocalyptic number.

64125504 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64125504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92601288).

64125504 is an abundant number, since it is smaller than the sum of its proper divisors (121077072).

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

64125504 is a wasteful number, since it uses less digits than its factorization.

64125504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864 (or 851 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 64125504 is about 8007.8401582449. The cubic root of 64125504 is about 400.2612959406.

The spelling of 64125504 in words is "sixty-four million, one hundred twenty-five thousand, five hundred four".