55604100 has 72 divisors (see below), whose sum is σ = 163149280. Its totient is φ = 14618880.

The previous prime is 55604099. The next prime is 55604113. The reversal of 55604100 is 140655.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20631 + ... + 23169.

Almost surely, 2^55604100 is an apocalyptic number.

55604100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55604100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81574640).

55604100 is an abundant number, since it is smaller than the sum of its proper divisors (107545180).

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

55604100 is a wasteful number, since it uses less digits than its factorization.

55604100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2629 (or 2622 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 55604100 is about 7456.8156742674. The cubic root of 55604100 is about 381.6825208630.

Adding to 55604100 its reverse (140655), we get a palindrome (55744755).

The spelling of 55604100 in words is "fifty-five million, six hundred four thousand, one hundred".