64915125 has 32 divisors (see below), whose sum is σ = 117846144. Its totient is φ = 31472000.

The previous prime is 64915111. The next prime is 64915133. The reversal of 64915125 is 52151946.

It is not a de Polignac number, because 64915125 - 2⁵ = 64915093 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3744 + ... + 11993.

It is an arithmetic number, because the mean of its divisors is an integer number (3682692).

Almost surely, 2^64915125 is an apocalyptic number.

It is an amenable number.

64915125 is a deficient number, since it is larger than the sum of its proper divisors (52931019).

64915125 is a wasteful number, since it uses less digits than its factorization.

64915125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15766 (or 15756 counting only the distinct ones).

The product of its digits is 10800, while the sum is 33.

The square root of 64915125 is about 8056.9923048244. The cubic root of 64915125 is about 401.8974949657.

The spelling of 64915125 in words is "sixty-four million, nine hundred fifteen thousand, one hundred twenty-five".