55605700 has 36 divisors (see below), whose sum is σ = 123242112. Its totient is φ = 21767200.

The previous prime is 55605659. The next prime is 55605703. The reversal of 55605700 is 750655.

It is not an unprimeable number, because it can be changed into a prime (55605703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1216 + ... + 10615.

It is an arithmetic number, because the mean of its divisors is an integer number (3423392).

Almost surely, 2^55605700 is an apocalyptic number.

55605700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55605700 is an abundant number, since it is smaller than the sum of its proper divisors (67636412).

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

55605700 is a wasteful number, since it uses less digits than its factorization.

55605700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11892 (or 11885 counting only the distinct ones).

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 55605700 is about 7456.9229578962. The cubic root of 55605700 is about 381.6861817811.

The spelling of 55605700 in words is "fifty-five million, six hundred five thousand, seven hundred".