52972156 has 18 divisors (see below), whose sum is σ = 94272360. Its totient is φ = 26044560.

The previous prime is 52972121. The next prime is 52972189. The reversal of 52972156 is 65127925.

It is a super-2 number, since 2×52972156² = 5612098622576672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13105 + ... + 16663.

Almost surely, 2^52972156 is an apocalyptic number.

It is an amenable number.

52972156 is a deficient number, since it is larger than the sum of its proper divisors (41300204).

52972156 is a wasteful number, since it uses less digits than its factorization.

52972156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3685 (or 3622 counting only the distinct ones).

The product of its digits is 37800, while the sum is 37.

The square root of 52972156 is about 7278.1973042780. The cubic root of 52972156 is about 375.5627840123.

The spelling of 52972156 in words is "fifty-two million, nine hundred seventy-two thousand, one hundred fifty-six".