55855868 has 12 divisors (see below), whose sum is σ = 101997840. Its totient is φ = 26713632.

The previous prime is 55855867. The next prime is 55855871. The reversal of 55855868 is 86855855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55855861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303473 + ... + 303656.

It is an arithmetic number, because the mean of its divisors is an integer number (8499820).

Almost surely, 2^55855868 is an apocalyptic number.

It is an amenable number.

55855868 is a deficient number, since it is larger than the sum of its proper divisors (46141972).

55855868 is a wasteful number, since it uses less digits than its factorization.

55855868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607156 (or 607154 counting only the distinct ones).

The product of its digits is 1920000, while the sum is 50.

The square root of 55855868 is about 7473.6783446975. The cubic root of 55855868 is about 382.2577228884.

The spelling of 55855868 in words is "fifty-five million, eight hundred fifty-five thousand, eight hundred sixty-eight".