64469825 has 12 divisors (see below), whose sum is σ = 91363200. Its totient is φ = 44207760.

The previous prime is 64469819. The next prime is 64469827. The reversal of 64469825 is 52896446.

It is not a de Polignac number, because 64469825 - 2⁴ = 64469809 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64469827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184025 + ... + 184374.

It is an arithmetic number, because the mean of its divisors is an integer number (7613600).

Almost surely, 2^64469825 is an apocalyptic number.

It is an amenable number.

64469825 is a deficient number, since it is larger than the sum of its proper divisors (26893375).

64469825 is a wasteful number, since it uses less digits than its factorization.

64469825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368416 (or 368411 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 64469825 is about 8029.3103688922. The cubic root of 64469825 is about 400.9764166702.

The spelling of 64469825 in words is "sixty-four million, four hundred sixty-nine thousand, eight hundred twenty-five".