55857808 has 20 divisors (see below), whose sum is σ = 110528640. Its totient is φ = 27334304.

The previous prime is 55857793. The next prime is 55857839. The reversal of 55857808 is 80875855.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36388 + ... + 37891.

It is an arithmetic number, because the mean of its divisors is an integer number (5526432).

Almost surely, 2^55857808 is an apocalyptic number.

It is an amenable number.

55857808 is a deficient number, since it is larger than the sum of its proper divisors (54670832).

55857808 is a wasteful number, since it uses less digits than its factorization.

55857808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74334 (or 74328 counting only the distinct ones).

The product of its (nonzero) digits is 448000, while the sum is 46.

The square root of 55857808 is about 7473.8081324048. The cubic root of 55857808 is about 382.2621483942.

It can be divided in two parts, 55857 and 808, that added together give a palindrome (56665).

The spelling of 55857808 in words is "fifty-five million, eight hundred fifty-seven thousand, eight hundred eight".