53182720 has 36 divisors (see below), whose sum is σ = 127392300. Its totient is φ = 21272576.

The previous prime is 53182697. The next prime is 53182733. The reversal of 53182720 is 2728135.

It can be written as a sum of positive squares in 2 ways, for example, as 8667136 + 44515584 = 2944^2 + 6672^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19495 + ... + 22054.

It is an arithmetic number, because the mean of its divisors is an integer number (3538675).

Almost surely, 2^53182720 is an apocalyptic number.

It is an amenable number.

53182720 is an abundant number, since it is smaller than the sum of its proper divisors (74209580).

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

53182720 is an equidigital number, since it uses as much as digits as its factorization.

53182720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41570 (or 41556 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 53182720 is about 7292.6483529648. The cubic root of 53182720 is about 376.0597460514.

The spelling of 53182720 in words is "fifty-three million, one hundred eighty-two thousand, seven hundred twenty".