52990664 has 8 divisors (see below), whose sum is σ = 99357510. Its totient is φ = 26495328.

The previous prime is 52990657. The next prime is 52990669. The reversal of 52990664 is 46609925.

It can be written as a sum of positive squares in only one way, i.e., 28408900 + 24581764 = 5330^2 + 4958^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (52990669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3311909 + ... + 3311924.

Almost surely, 2^52990664 is an apocalyptic number.

It is an amenable number.

52990664 is a deficient number, since it is larger than the sum of its proper divisors (46366846).

52990664 is a wasteful number, since it uses less digits than its factorization.

52990664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6623839 (or 6623835 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 52990664 is about 7279.4686619286. The cubic root of 52990664 is about 375.6065183510.

The spelling of 52990664 in words is "fifty-two million, nine hundred ninety thousand, six hundred sixty-four".