53272840 has 16 divisors (see below), whose sum is σ = 119863980. Its totient is φ = 21309120.

The previous prime is 53272799. The next prime is 53272847. The reversal of 53272840 is 4827235.

It can be written as a sum of positive squares in 2 ways, for example, as 44116164 + 9156676 = 6642^2 + 3026^2 .

It is not an unprimeable number, because it can be changed into a prime (53272847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665871 + ... + 665950.

Almost surely, 2^53272840 is an apocalyptic number.

It is an amenable number.

53272840 is an abundant number, since it is smaller than the sum of its proper divisors (66591140).

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

53272840 is a wasteful number, since it uses less digits than its factorization.

53272840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331832 (or 1331828 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 53272840 is about 7298.8245629005. The cubic root of 53272840 is about 376.2720416957.

The spelling of 53272840 in words is "fifty-three million, two hundred seventy-two thousand, eight hundred forty".