53156516 has 12 divisors (see below), whose sum is σ = 106313088. Its totient is φ = 22781352.

The previous prime is 53156513. The next prime is 53156561. The reversal of 53156516 is 61565135.

53156516 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (53156513) 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, 949196 + ... + 949251.

It is an arithmetic number, because the mean of its divisors is an integer number (8859424).

Almost surely, 2^53156516 is an apocalyptic number.

It is an amenable number.

53156516 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

53156516 is a wasteful number, since it uses less digits than its factorization.

53156516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898458 (or 1898456 counting only the distinct ones).

The product of its digits is 13500, while the sum is 32.

The square root of 53156516 is about 7290.8515277710. The cubic root of 53156516 is about 375.9979722993.

The spelling of 53156516 in words is "fifty-three million, one hundred fifty-six thousand, five hundred sixteen".