55110561100 has 36 divisors (see below), whose sum is σ = 136674193264. Its totient is φ = 18895049280.

The previous prime is 55110561097. The next prime is 55110561127. The reversal of 55110561100 is 116501155.

55110561100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 39363987 + ... + 39365386.

Almost surely, 2^55110561100 is an apocalyptic number.

55110561100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55110561100 is an abundant number, since it is smaller than the sum of its proper divisors (81563632164).

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

55110561100 is a wasteful number, since it uses less digits than its factorization.

55110561100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78729394 (or 78729387 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 25.

The spelling of 55110561100 in words is "fifty-five billion, one hundred ten million, five hundred sixty-one thousand, one hundred".