55307833818 has 32 divisors (see below), whose sum is σ = 116456524800. Its totient is φ = 17462784816.

The previous prime is 55307833783. The next prime is 55307833897. The reversal of 55307833818 is 81833870355.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 727953 + ... + 800331.

It is an arithmetic number, because the mean of its divisors is an integer number (3639266400).

Almost surely, 2^55307833818 is an apocalyptic number.

55307833818 is an abundant number, since it is smaller than the sum of its proper divisors (61148690982).

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

55307833818 is a wasteful number, since it uses less digits than its factorization.

55307833818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79106.

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 55307833818 in words is "fifty-five billion, three hundred seven million, eight hundred thirty-three thousand, eight hundred eighteen".