64337625 has 64 divisors (see below), whose sum is σ = 129841920. Its totient is φ = 31176000.

The previous prime is 64337599. The next prime is 64337633. The reversal of 64337625 is 52673346.

64337625 is a `hidden beast` number, since 643 + 3 + 7 + 6 + 2 + 5 = 666.

It is not a de Polignac number, because 64337625 - 2¹⁴ = 64321241 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64337625.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36259 + ... + 37991.

It is an arithmetic number, because the mean of its divisors is an integer number (2028780).

Almost surely, 2^64337625 is an apocalyptic number.

It is an amenable number.

64337625 is an abundant number, since it is smaller than the sum of its proper divisors (65504295).

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

64337625 is a wasteful number, since it uses less digits than its factorization.

64337625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768 (or 1752 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

The square root of 64337625 is about 8021.0738059190. The cubic root of 64337625 is about 400.7021521514.

The spelling of 64337625 in words is "sixty-four million, three hundred thirty-seven thousand, six hundred twenty-five".