55813056 has 112 divisors (see below), whose sum is σ = 162153600. Its totient is φ = 16837632.

The previous prime is 55813049. The next prime is 55813061. The reversal of 55813056 is 65031855.

It is a congruent number.

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, 147075 + ... + 147453.

It is an arithmetic number, because the mean of its divisors is an integer number (1447800).

Almost surely, 2^55813056 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 55813056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81076800).

55813056 is an abundant number, since it is smaller than the sum of its proper divisors (106340544).

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

55813056 is a wasteful number, since it uses less digits than its factorization.

55813056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 55813056 is about 7470.8136103105. The cubic root of 55813056 is about 382.1600345514.

The spelling of 55813056 in words is "fifty-five million, eight hundred thirteen thousand, fifty-six".