56554218 has 24 divisors (see below), whose sum is σ = 140039328. Its totient is φ = 16158312.

The previous prime is 56554213. The next prime is 56554237. The reversal of 56554218 is 81245565.

It is not an unprimeable number, because it can be changed into a prime (56554213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 224296 + ... + 224547.

It is an arithmetic number, because the mean of its divisors is an integer number (5834972).

Almost surely, 2^56554218 is an apocalyptic number.

56554218 is an abundant number, since it is smaller than the sum of its proper divisors (83485110).

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

56554218 is a wasteful number, since it uses less digits than its factorization.

56554218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448858 (or 448855 counting only the distinct ones).

The product of its digits is 48000, while the sum is 36.

The square root of 56554218 is about 7520.2538520983. The cubic root of 56554218 is about 383.8442157801.

The spelling of 56554218 in words is "fifty-six million, five hundred fifty-four thousand, two hundred eighteen".