65504025 has 48 divisors (see below), whose sum is σ = 122670720. Its totient is φ = 34257600.

The previous prime is 65504017. The next prime is 65504027. The reversal of 65504025 is 52040556.

65504025 is a `hidden beast` number, since 655 + 0 + 4 + 0 + 2 + 5 = 666.

It is not a de Polignac number, because 65504025 - 2³ = 65504017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 65504025.

It is not an unprimeable number, because it can be changed into a prime (65504027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34860 + ... + 36690.

It is an arithmetic number, because the mean of its divisors is an integer number (2555640).

Almost surely, 2^65504025 is an apocalyptic number.

It is an amenable number.

65504025 is a deficient number, since it is larger than the sum of its proper divisors (57166695).

65504025 is a wasteful number, since it uses less digits than its factorization.

65504025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1903 (or 1892 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 65504025 is about 8093.4556896297. The cubic root of 65504025 is about 403.1091556780.

The spelling of 65504025 in words is "sixty-five million, five hundred four thousand, twenty-five".