52978856 has 32 divisors (see below), whose sum is σ = 113859840. Its totient is φ = 22638528.

The previous prime is 52978819. The next prime is 52978879. The reversal of 52978856 is 65887925.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21041 + ... + 23423.

It is an arithmetic number, because the mean of its divisors is an integer number (3558120).

Almost surely, 2^52978856 is an apocalyptic number.

52978856 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

52978856 is an abundant number, since it is smaller than the sum of its proper divisors (60880984).

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

52978856 is a wasteful number, since it uses less digits than its factorization.

52978856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793 (or 2789 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 50.

The square root of 52978856 is about 7278.6575685356. The cubic root of 52978856 is about 375.5786172648.

The spelling of 52978856 in words is "fifty-two million, nine hundred seventy-eight thousand, eight hundred fifty-six".