55113516 has 36 divisors (see below), whose sum is σ = 142283232. Its totient is φ = 17979744.

The previous prime is 55113449. The next prime is 55113523. The reversal of 55113516 is 61531155.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 55113516.

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, 14595 + ... + 17978.

It is an arithmetic number, because the mean of its divisors is an integer number (3952312).

Almost surely, 2^55113516 is an apocalyptic number.

It is an amenable number.

55113516 is an abundant number, since it is smaller than the sum of its proper divisors (87169716).

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

55113516 is a wasteful number, since it uses less digits than its factorization.

55113516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32630 (or 32625 counting only the distinct ones).

The product of its digits is 2250, while the sum is 27.

The square root of 55113516 is about 7423.8477893879. The cubic root of 55113516 is about 380.5567001945.

The spelling of 55113516 in words is "fifty-five million, one hundred thirteen thousand, five hundred sixteen".