55736218 has 16 divisors (see below), whose sum is σ = 84460320. Its totient is φ = 27584656.

The previous prime is 55736209. The next prime is 55736221. The reversal of 55736218 is 81263755.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132813 + ... + 133231.

It is an arithmetic number, because the mean of its divisors is an integer number (5278770).

Almost surely, 2^55736218 is an apocalyptic number.

55736218 is a deficient number, since it is larger than the sum of its proper divisors (28724102).

55736218 is a wasteful number, since it uses less digits than its factorization.

55736218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941.

The product of its digits is 50400, while the sum is 37.

The square root of 55736218 is about 7465.6692935061. The cubic root of 55736218 is about 381.9845803924.

The spelling of 55736218 in words is "fifty-five million, seven hundred thirty-six thousand, two hundred eighteen".