55665868 has 6 divisors (see below), whose sum is σ = 97415276. Its totient is φ = 27832932.

The previous prime is 55665853. The next prime is 55665889. The reversal of 55665868 is 86856655.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6958230 + ... + 6958237.

Almost surely, 2^55665868 is an apocalyptic number.

It is an amenable number.

55665868 is a deficient number, since it is larger than the sum of its proper divisors (41749408).

55665868 is a wasteful number, since it uses less digits than its factorization.

55665868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13916471 (or 13916469 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 49.

The square root of 55665868 is about 7460.9562389817. The cubic root of 55665868 is about 381.8237996631.

The spelling of 55665868 in words is "fifty-five million, six hundred sixty-five thousand, eight hundred sixty-eight".