53911956 has 72 divisors (see below), whose sum is σ = 147304416. Its totient is φ = 15301440.

The previous prime is 53911943. The next prime is 53911967. The reversal of 53911956 is 65911935.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162711 + ... + 163041.

Almost surely, 2^53911956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53911956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73652208).

53911956 is an abundant number, since it is smaller than the sum of its proper divisors (93392460).

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

53911956 is a wasteful number, since it uses less digits than its factorization.

53911956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 620 counting only the distinct ones).

The product of its digits is 36450, while the sum is 39.

The square root of 53911956 is about 7342.4761490930. The cubic root of 53911956 is about 377.7707800959.

The spelling of 53911956 in words is "fifty-three million, nine hundred eleven thousand, nine hundred fifty-six".