64038925 has 12 divisors (see below), whose sum is σ = 81346356. Its totient is φ = 49980800.

The previous prime is 64038913. The next prime is 64038929. The reversal of 64038925 is 52983046.

It can be written as a sum of positive squares in 6 ways, for example, as 20241001 + 43797924 = 4499^2 + 6618^2 .

It is not a de Polignac number, because 64038925 - 2⁹ = 64038413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64038929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30214 + ... + 32263.

It is an arithmetic number, because the mean of its divisors is an integer number (6778863).

Almost surely, 2^64038925 is an apocalyptic number.

It is an amenable number.

64038925 is a deficient number, since it is larger than the sum of its proper divisors (17307431).

64038925 is a wasteful number, since it uses less digits than its factorization.

64038925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62528 (or 62523 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 64038925 is about 8002.4324427014. The cubic root of 64038925 is about 400.0810773151.

The spelling of 64038925 in words is "sixty-four million, thirty-eight thousand, nine hundred twenty-five".