55115100500 has 48 divisors (see below), whose sum is σ = 121895155200. Its totient is φ = 21766960800.

The previous prime is 55115100487. The next prime is 55115100527. The reversal of 55115100500 is 500151155.

It is a happy number.

55115100500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 658160 + ... + 737159.

It is an arithmetic number, because the mean of its divisors is an integer number (2539482400).

Almost surely, 2^55115100500 is an apocalyptic number.

55115100500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55115100500 is an abundant number, since it is smaller than the sum of its proper divisors (66780054700).

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

55115100500 is a wasteful number, since it uses less digits than its factorization.

55115100500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395417 (or 1395405 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 23.

Adding to 55115100500 its reverse (500151155), we get a palindrome (55615251655).

The spelling of 55115100500 in words is "fifty-five billion, one hundred fifteen million, one hundred thousand, five hundred".