55516736 has 84 divisors (see below), whose sum is σ = 124047504. Its totient is φ = 24625920.

The previous prime is 55516723. The next prime is 55516757. The reversal of 55516736 is 63761555.

It is a self number, because there is not a number n which added to its sum of digits gives 55516736.

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, 518795 + ... + 518901.

It is an arithmetic number, because the mean of its divisors is an integer number (1476756).

Almost surely, 2^55516736 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 55516736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62023752).

55516736 is an abundant number, since it is smaller than the sum of its proper divisors (68530768).

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

55516736 is a wasteful number, since it uses less digits than its factorization.

55516736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208 (or 187 counting only the distinct ones).

The product of its digits is 94500, while the sum is 38.

The square root of 55516736 is about 7450.9553749838. The cubic root of 55516736 is about 381.4825188797.

The spelling of 55516736 in words is "fifty-five million, five hundred sixteen thousand, seven hundred thirty-six".