55552100 has 18 divisors (see below), whose sum is σ = 120548274. Its totient is φ = 22220800.

The previous prime is 55552069. The next prime is 55552103. The reversal of 55552100 is 125555.

55552100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 13897984 + 41654116 = 3728^2 + 6454^2 .

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (55552103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277661 + ... + 277860.

Almost surely, 2^55552100 is an apocalyptic number.

55552100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55552100 is an abundant number, since it is smaller than the sum of its proper divisors (64996174).

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

55552100 is a wasteful number, since it uses less digits than its factorization.

55552100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555535 (or 555528 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 23.

The square root of 55552100 is about 7453.3281156809. The cubic root of 55552100 is about 381.5635027731.

Adding to 55552100 its reverse (125555), we get a palindrome (55677655).

The spelling of 55552100 in words is "fifty-five million, five hundred fifty-two thousand, one hundred".