55545372233 has 16 divisors (see below), whose sum is σ = 60849042240. Its totient is φ = 50389470144.

The previous prime is 55545372199. The next prime is 55545372247. The reversal of 55545372233 is 33227354555.

It is a de Polignac number, because none of the positive numbers 2^k-55545372233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55545372283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3522635 + ... + 3538367.

It is an arithmetic number, because the mean of its divisors is an integer number (3803065140).

Almost surely, 2^55545372233 is an apocalyptic number.

It is an amenable number.

55545372233 is a deficient number, since it is larger than the sum of its proper divisors (5303670007).

55545372233 is a wasteful number, since it uses less digits than its factorization.

55545372233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20408.

The product of its digits is 1890000, while the sum is 44.

The spelling of 55545372233 in words is "fifty-five billion, five hundred forty-five million, three hundred seventy-two thousand, two hundred thirty-three".