52515656 has 8 divisors (see below), whose sum is σ = 98466870. Its totient is φ = 26257824.

The previous prime is 52515649. The next prime is 52515667. The reversal of 52515656 is 65651525.

It can be written as a sum of positive squares in only one way, i.e., 52330756 + 184900 = 7234^2 + 430^2 .

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

It is a super-2 number, since 2×52515656² = 5515788250220672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3282221 + ... + 3282236.

Almost surely, 2^52515656 is an apocalyptic number.

It is an amenable number.

52515656 is a deficient number, since it is larger than the sum of its proper divisors (45951214).

52515656 is a wasteful number, since it uses less digits than its factorization.

52515656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6564463 (or 6564459 counting only the distinct ones).

The product of its digits is 45000, while the sum is 35.

The square root of 52515656 is about 7246.7686592025. The cubic root of 52515656 is about 374.4808365461.

The spelling of 52515656 in words is "fifty-two million, five hundred fifteen thousand, six hundred fifty-six".