56555955 has 16 divisors (see below), whose sum is σ = 100544160. Its totient is φ = 30163104.

The previous prime is 56555927. The next prime is 56555959. The reversal of 56555955 is 55955565.

56555955 is a `hidden beast` number, since 5 + 6 + 55 + 595 + 5 = 666.

It is not a de Polignac number, because 56555955 - 2¹¹ = 56553907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 56555955.

It is not an unprimeable number, because it can be changed into a prime (56555959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209332 + ... + 209601.

It is an arithmetic number, because the mean of its divisors is an integer number (6284010).

Almost surely, 2^56555955 is an apocalyptic number.

56555955 is a deficient number, since it is larger than the sum of its proper divisors (43988205).

56555955 is a wasteful number, since it uses less digits than its factorization.

56555955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418947 (or 418941 counting only the distinct ones).

The product of its digits is 843750, while the sum is 45.

The square root of 56555955 is about 7520.3693393343. The cubic root of 56555955 is about 383.8481455228.

The spelling of 56555955 in words is "fifty-six million, five hundred fifty-five thousand, nine hundred fifty-five".