55231270100 has 36 divisors (see below), whose sum is σ = 120951438300. Its totient is φ = 21889820160.

The previous prime is 55231270099. The next prime is 55231270117. The reversal of 55231270100 is 107213255.

It can be written as a sum of positive squares in 6 ways, for example, as 854626756 + 54376643344 = 29234^2 + 233188^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55231270100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2522645 + ... + 2544444.

It is an arithmetic number, because the mean of its divisors is an integer number (3359762175).

Almost surely, 2^55231270100 is an apocalyptic number.

55231270100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55231270100 is an abundant number, since it is smaller than the sum of its proper divisors (65720168200).

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

55231270100 is a wasteful number, since it uses less digits than its factorization.

55231270100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5067212 (or 5067205 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

Adding to 55231270100 its reverse (107213255), we get a palindrome (55338483355).

The spelling of 55231270100 in words is "fifty-five billion, two hundred thirty-one million, two hundred seventy thousand, one hundred".