52972280 has 32 divisors (see below), whose sum is σ = 119728800. Its totient is φ = 21092736.

The previous prime is 52972261. The next prime is 52972291. The reversal of 52972280 is 8227925.

It is a self number, because there is not a number n which added to its sum of digits gives 52972280.

It is a congruent number.

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, 6269 + ... + 12051.

It is an arithmetic number, because the mean of its divisors is an integer number (3741525).

Almost surely, 2^52972280 is an apocalyptic number.

It is an amenable number.

52972280 is an abundant number, since it is smaller than the sum of its proper divisors (66756520).

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

52972280 is a wasteful number, since it uses less digits than its factorization.

52972280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6023 (or 6019 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 52972280 is about 7278.2058228660. The cubic root of 52972280 is about 375.5630770577.

The spelling of 52972280 in words is "fifty-two million, nine hundred seventy-two thousand, two hundred eighty".