56550555 has 40 divisors (see below), whose sum is σ = 106722000. Its totient is φ = 28569024.

The previous prime is 56550553. The next prime is 56550563. The reversal of 56550555 is 55505565.

56550555 is a `hidden beast` number, since 56 + 5 + 50 + 555 = 666.

It is not a de Polignac number, because 56550555 - 2¹ = 56550553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56550553) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4021 + ... + 11369.

It is an arithmetic number, because the mean of its divisors is an integer number (2668050).

Almost surely, 2^56550555 is an apocalyptic number.

56550555 is a deficient number, since it is larger than the sum of its proper divisors (50171445).

56550555 is a wasteful number, since it uses less digits than its factorization.

56550555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7385 (or 7376 counting only the distinct ones).

The product of its (nonzero) digits is 93750, while the sum is 36.

The square root of 56550555 is about 7520.0103058440. The cubic root of 56550555 is about 383.8359284423.

The spelling of 56550555 in words is "fifty-six million, five hundred fifty thousand, five hundred fifty-five".