55526816 has 48 divisors (see below), whose sum is σ = 115839360. Its totient is φ = 26127360.

The previous prime is 55526749. The next prime is 55526827. The reversal of 55526816 is 61862555.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 55526816.

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, 164600 + ... + 164936.

It is an arithmetic number, because the mean of its divisors is an integer number (2413320).

Almost surely, 2^55526816 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 55526816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57919680).

55526816 is an abundant number, since it is smaller than the sum of its proper divisors (60312544).

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

55526816 is a wasteful number, since it uses less digits than its factorization.

55526816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637 (or 629 counting only the distinct ones).

The product of its digits is 72000, while the sum is 38.

The square root of 55526816 is about 7451.6317676063. The cubic root of 55526816 is about 381.5056056782.

The spelling of 55526816 in words is "fifty-five million, five hundred twenty-six thousand, eight hundred sixteen".