53156436 has 36 divisors (see below), whose sum is σ = 127084608. Its totient is φ = 17285328.

The previous prime is 53156429. The next prime is 53156447. The reversal of 53156436 is 63465135.

It is a junction number, because it is equal to n+sod(n) for n = 53156397 and 53156406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 172995 + ... + 173301.

It is an arithmetic number, because the mean of its divisors is an integer number (3530128).

Almost surely, 2^53156436 is an apocalyptic number.

It is an amenable number.

53156436 is an abundant number, since it is smaller than the sum of its proper divisors (73928172).

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

53156436 is a wasteful number, since it uses less digits than its factorization.

53156436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 359 counting only the distinct ones).

The product of its digits is 32400, while the sum is 33.

The square root of 53156436 is about 7290.8460414413. The cubic root of 53156436 is about 375.9977836749.

The spelling of 53156436 in words is "fifty-three million, one hundred fifty-six thousand, four hundred thirty-six".