55000100 has 36 divisors (see below), whose sum is σ = 126374724. Its totient is φ = 20705280.

The previous prime is 55000091. The next prime is 55000111. The reversal of 55000100 is 100055.

It can be written as a sum of positive squares in 6 ways, for example, as 2611456 + 52388644 = 1616^2 + 7238^2 .

It is a super-2 number, since 2×55000100² = 6050022000020000, which contains 22 as substring.

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, 14477 + ... + 17876.

It is an arithmetic number, because the mean of its divisors is an integer number (3510409).

Almost surely, 2^55000100 is an apocalyptic number.

55000100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55000100 is an abundant number, since it is smaller than the sum of its proper divisors (71374624).

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

55000100 is a wasteful number, since it uses less digits than its factorization.

55000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32384 (or 32377 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 11.

The square root of 55000100 is about 7416.2052290912. The cubic root of 55000100 is about 380.2954765580.

Adding to 55000100 its reverse (100055), we get a palindrome (55100155).

The spelling of 55000100 in words is "fifty-five million, one hundred", and thus it is an aban number.