52561568 has 12 divisors (see below), whose sum is σ = 103480650. Its totient is φ = 26280768.

The previous prime is 52561541. The next prime is 52561573. The reversal of 52561568 is 86516525.

It can be written as a sum of positive squares in only one way, i.e., 36336784 + 16224784 = 6028^2 + 4028^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 821243 + ... + 821306.

Almost surely, 2^52561568 is an apocalyptic number.

It is an amenable number.

52561568 is a deficient number, since it is larger than the sum of its proper divisors (50919082).

52561568 is a wasteful number, since it uses less digits than its factorization.

52561568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642559 (or 1642551 counting only the distinct ones).

The product of its digits is 72000, while the sum is 38.

The square root of 52561568 is about 7249.9357238530. The cubic root of 52561568 is about 374.5899351624.

The spelling of 52561568 in words is "fifty-two million, five hundred sixty-one thousand, five hundred sixty-eight".