52616664 has 48 divisors (see below), whose sum is σ = 146362320. Its totient is φ = 17064000.

The previous prime is 52616659. The next prime is 52616671. The reversal of 52616664 is 46661625.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7212 + ... + 12539.

It is an arithmetic number, because the mean of its divisors is an integer number (3049215).

Almost surely, 2^52616664 is an apocalyptic number.

It is an amenable number.

52616664 is an abundant number, since it is smaller than the sum of its proper divisors (93745656).

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

52616664 is a wasteful number, since it uses less digits than its factorization.

52616664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19800 (or 19793 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 52616664 is about 7253.7344864559. The cubic root of 52616664 is about 374.7207734717.

The spelling of 52616664 in words is "fifty-two million, six hundred sixteen thousand, six hundred sixty-four".