55132100 has 18 divisors (see below), whose sum is σ = 119636874. Its totient is φ = 22052800.

The previous prime is 55132093. The next prime is 55132123. The reversal of 55132100 is 123155.

It can be written as a sum of positive squares in 3 ways, for example, as 15618304 + 39513796 = 3952^2 + 6286^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 275561 + ... + 275760.

It is an arithmetic number, because the mean of its divisors is an integer number (6646493).

Almost surely, 2^55132100 is an apocalyptic number.

55132100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55132100 is an abundant number, since it is smaller than the sum of its proper divisors (64504774).

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

55132100 is a wasteful number, since it uses less digits than its factorization.

55132100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551335 (or 551328 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 55132100 is about 7425.0993259350. The cubic root of 55132100 is about 380.5994693218.

Adding to 55132100 its reverse (123155), we get a palindrome (55255255).

The spelling of 55132100 in words is "fifty-five million, one hundred thirty-two thousand, one hundred".