53315556 has 24 divisors (see below), whose sum is σ = 142175040. Its totient is φ = 15232992.

The previous prime is 53315513. The next prime is 53315579. The reversal of 53315556 is 65551335.

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, 317271 + ... + 317438.

It is an arithmetic number, because the mean of its divisors is an integer number (5923960).

Almost surely, 2^53315556 is an apocalyptic number.

It is an amenable number.

53315556 is an abundant number, since it is smaller than the sum of its proper divisors (88859484).

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

53315556 is a wasteful number, since it uses less digits than its factorization.

53315556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634723 (or 634721 counting only the distinct ones).

The product of its digits is 33750, while the sum is 33.

The square root of 53315556 is about 7301.7502011504. The cubic root of 53315556 is about 376.3725841268.

The spelling of 53315556 in words is "fifty-three million, three hundred fifteen thousand, five hundred fifty-six".