55504100 has 18 divisors (see below), whose sum is σ = 120444114. Its totient is φ = 22201600.

The previous prime is 55504067. The next prime is 55504103. The reversal of 55504100 is 140555.

It can be written as a sum of positive squares in 3 ways, for example, as 19695844 + 35808256 = 4438^2 + 5984^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (55504103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277421 + ... + 277620.

Almost surely, 2^55504100 is an apocalyptic number.

55504100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55504100 is an abundant number, since it is smaller than the sum of its proper divisors (64940014).

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

55504100 is a wasteful number, since it uses less digits than its factorization.

55504100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555055 (or 555048 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 55504100 is about 7450.1073817765. The cubic root of 55504100 is about 381.4535739811.

Adding to 55504100 its reverse (140555), we get a palindrome (55644655).

The spelling of 55504100 in words is "fifty-five million, five hundred four thousand, one hundred".