53664788 has 12 divisors (see below), whose sum is σ = 95911872. Its totient is φ = 26261400.

The previous prime is 53664769. The next prime is 53664791. The reversal of 53664788 is 88746635.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142538 + ... + 142913.

It is an arithmetic number, because the mean of its divisors is an integer number (7992656).

Almost surely, 2^53664788 is an apocalyptic number.

It is an amenable number.

53664788 is a deficient number, since it is larger than the sum of its proper divisors (42247084).

53664788 is a wasteful number, since it uses less digits than its factorization.

53664788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285502 (or 285500 counting only the distinct ones).

The product of its digits is 967680, while the sum is 47.

The square root of 53664788 is about 7325.6254340500. The cubic root of 53664788 is about 377.1925786855.

The spelling of 53664788 in words is "fifty-three million, six hundred sixty-four thousand, seven hundred eighty-eight".