55170056 has 16 divisors (see below), whose sum is σ = 104412240. Its totient is φ = 27326800.

The previous prime is 55170041. The next prime is 55170061. The reversal of 55170056 is 65007155.

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, 31370 + ... + 33081.

It is an arithmetic number, because the mean of its divisors is an integer number (6525765).

Almost surely, 2^55170056 is an apocalyptic number.

It is an amenable number.

55170056 is a deficient number, since it is larger than the sum of its proper divisors (49242184).

55170056 is a wasteful number, since it uses less digits than its factorization.

55170056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64564 (or 64560 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 55170056 is about 7427.6548115808. The cubic root of 55170056 is about 380.6867912243.

It can be divided in two parts, 551 and 70056, that added together give a palindrome (70607).

The spelling of 55170056 in words is "fifty-five million, one hundred seventy thousand, fifty-six".