53121156 has 48 divisors (see below), whose sum is σ = 139890240. Its totient is φ = 15541120.

The previous prime is 53121143. The next prime is 53121161. The reversal of 53121156 is 65112135.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3111 + ... + 10766.

It is an arithmetic number, because the mean of its divisors is an integer number (2914380).

Almost surely, 2^53121156 is an apocalyptic number.

It is an amenable number.

53121156 is an abundant number, since it is smaller than the sum of its proper divisors (86769084).

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

53121156 is a wasteful number, since it uses less digits than its factorization.

53121156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13924 (or 13922 counting only the distinct ones).

The product of its digits is 900, while the sum is 24.

The square root of 53121156 is about 7288.4261675618. The cubic root of 53121156 is about 375.9145818490.

The spelling of 53121156 in words is "fifty-three million, one hundred twenty-one thousand, one hundred fifty-six".