65390875 has 32 divisors (see below), whose sum is σ = 93749760. Its totient is φ = 45036000.

The previous prime is 65390869. The next prime is 65390887. The reversal of 65390875 is 57809356.

It is not a de Polignac number, because 65390875 - 2³ = 65390867 is a prime.

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, 24874 + ... + 27376.

It is an arithmetic number, because the mean of its divisors is an integer number (2929680).

Almost surely, 2^65390875 is an apocalyptic number.

65390875 is a deficient number, since it is larger than the sum of its proper divisors (28358885).

65390875 is a wasteful number, since it uses less digits than its factorization.

65390875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2548 (or 2538 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 65390875 is about 8086.4624527664. The cubic root of 65390875 is about 402.8769150429.

The spelling of 65390875 in words is "sixty-five million, three hundred ninety thousand, eight hundred seventy-five".