55055516 has 12 divisors (see below), whose sum is σ = 97106688. Its totient is φ = 27310752.

The previous prime is 55055479. The next prime is 55055569. The reversal of 55055516 is 61555055.

It is a super-2 number, since 2×55055516² = 6062219684052512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53681 + ... + 54696.

It is an arithmetic number, because the mean of its divisors is an integer number (8092224).

Almost surely, 2^55055516 is an apocalyptic number.

It is an amenable number.

55055516 is a deficient number, since it is larger than the sum of its proper divisors (42051172).

55055516 is a wasteful number, since it uses less digits than its factorization.

55055516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108508 (or 108506 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 32.

The square root of 55055516 is about 7419.9404310277. The cubic root of 55055516 is about 380.4231574176.

The spelling of 55055516 in words is "fifty-five million, fifty-five thousand, five hundred sixteen".