52133664 has 48 divisors (see below), whose sum is σ = 149294880. Its totient is φ = 15797760.

The previous prime is 52133659. The next prime is 52133687. The reversal of 52133664 is 46633125.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23629 + ... + 25740.

It is an arithmetic number, because the mean of its divisors is an integer number (3110310).

Almost surely, 2^52133664 is an apocalyptic number.

It is an amenable number.

52133664 is an abundant number, since it is smaller than the sum of its proper divisors (97161216).

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

52133664 is a wasteful number, since it uses less digits than its factorization.

52133664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49393 (or 49385 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 52133664 is about 7220.3645337337. The cubic root of 52133664 is about 373.5706512656.

Adding to 52133664 its reverse (46633125), we get a palindrome (98766789).

The spelling of 52133664 in words is "fifty-two million, one hundred thirty-three thousand, six hundred sixty-four".