55131510223023 has 64 divisors (see below), whose sum is σ = 85607435354112. Its totient is φ = 31250454958080.

The previous prime is 55131510222973. The next prime is 55131510223033. The reversal of 55131510223023 is 32032201513155.

It is not a de Polignac number, because 55131510223023 - 2³² = 55127215255727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55131510223033) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1037977515 + ... + 1038030627.

It is an arithmetic number, because the mean of its divisors is an integer number (1337616177408).

Almost surely, 2^{55131510223023} is an apocalyptic number.

55131510223023 is a deficient number, since it is larger than the sum of its proper divisors (30475925131089).

55131510223023 is a wasteful number, since it uses less digits than its factorization.

55131510223023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86504.

The product of its (nonzero) digits is 27000, while the sum is 33.

Adding to 55131510223023 its reverse (32032201513155), we get a palindrome (87163711736178).

The spelling of 55131510223023 in words is "fifty-five trillion, one hundred thirty-one billion, five hundred ten million, two hundred twenty-three thousand, twenty-three".