64972252 has 24 divisors (see below), whose sum is σ = 115139024. Its totient is φ = 32078592.

The previous prime is 64972247. The next prime is 64972253. The reversal of 64972252 is 25227946.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64972253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192628 + ... + 192964.

Almost surely, 2^64972252 is an apocalyptic number.

It is an amenable number.

64972252 is a deficient number, since it is larger than the sum of its proper divisors (50166772).

64972252 is a wasteful number, since it uses less digits than its factorization.

64972252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805 (or 803 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 64972252 is about 8060.5367066964. The cubic root of 64972252 is about 402.0153538190.

The spelling of 64972252 in words is "sixty-four million, nine hundred seventy-two thousand, two hundred fifty-two".