55605100 has 18 divisors (see below), whose sum is σ = 120663284. Its totient is φ = 22242000.

The previous prime is 55605073. The next prime is 55605101. The reversal of 55605100 is 150655.

It is not an unprimeable number, because it can be changed into a prime (55605101) 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, 277926 + ... + 278125.

Almost surely, 2^55605100 is an apocalyptic number.

55605100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55605100 is an abundant number, since it is smaller than the sum of its proper divisors (65058184).

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

55605100 is a wasteful number, since it uses less digits than its factorization.

55605100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556065 (or 556058 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 55605100 is about 7456.8827267163. The cubic root of 55605100 is about 381.6848089450.

Adding to 55605100 its reverse (150655), we get a palindrome (55755755).

The spelling of 55605100 in words is "fifty-five million, six hundred five thousand, one hundred".