55043031155 has 16 divisors (see below), whose sum is σ = 77328748224. Its totient is φ = 36823211520.

The previous prime is 55043031151. The next prime is 55043031161. The reversal of 55043031155 is 55113034055.

It is not a de Polignac number, because 55043031155 - 2² = 55043031151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55043031151) 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, 19177322 + ... + 19180191.

It is an arithmetic number, because the mean of its divisors is an integer number (4833046764).

Almost surely, 2^55043031155 is an apocalyptic number.

55043031155 is a deficient number, since it is larger than the sum of its proper divisors (22285717069).

55043031155 is a wasteful number, since it uses less digits than its factorization.

55043031155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38357566.

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 55043031155 in words is "fifty-five billion, forty-three million, thirty-one thousand, one hundred fifty-five".