52118280 has 48 divisors (see below), whose sum is σ = 169385580. Its totient is φ = 13898112.

The previous prime is 52118179. The next prime is 52118293. The reversal of 52118280 is 8281125.

It can be written as a sum of positive squares in 2 ways, for example, as 51926436 + 191844 = 7206^2 + 438^2 .

It is a super-2 number, since 2×52118280² = 5432630220316800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72027 + ... + 72746.

Almost surely, 2^52118280 is an apocalyptic number.

It is an amenable number.

52118280 is an abundant number, since it is smaller than the sum of its proper divisors (117267300).

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

52118280 is a wasteful number, since it uses less digits than its factorization.

52118280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144790 (or 144783 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 52118280 is about 7219.2991349576. The cubic root of 52118280 is about 373.5339022897.

The spelling of 52118280 in words is "fifty-two million, one hundred eighteen thousand, two hundred eighty".