55666700 has 36 divisors (see below), whose sum is σ = 124700352. Its totient is φ = 21547200.

The previous prime is 55666697. The next prime is 55666711. The reversal of 55666700 is 766655.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5879 + ... + 12078.

Almost surely, 2^55666700 is an apocalyptic number.

55666700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55666700 is an abundant number, since it is smaller than the sum of its proper divisors (69033652).

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

55666700 is a wasteful number, since it uses less digits than its factorization.

55666700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18002 (or 17995 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 55666700 is about 7461.0119957014. The cubic root of 55666700 is about 381.8257019408.

The spelling of 55666700 in words is "fifty-five million, six hundred sixty-six thousand, seven hundred".