64178252 has 12 divisors (see below), whose sum is σ = 112653576. Its totient is φ = 31991520.

The previous prime is 64178251. The next prime is 64178269. The reversal of 64178252 is 25287146.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (64178251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22913 + ... + 25560.

It is an arithmetic number, because the mean of its divisors is an integer number (9387798).

Almost surely, 2^64178252 is an apocalyptic number.

It is an amenable number.

64178252 is a deficient number, since it is larger than the sum of its proper divisors (48475324).

64178252 is a wasteful number, since it uses less digits than its factorization.

64178252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48808 (or 48806 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 64178252 is about 8011.1330035145. The cubic root of 64178252 is about 400.3710140983.

The spelling of 64178252 in words is "sixty-four million, one hundred seventy-eight thousand, two hundred fifty-two".