55855668 has 48 divisors (see below), whose sum is σ = 149667840. Its totient is φ = 16034400.

The previous prime is 55855663. The next prime is 55855703. The reversal of 55855668 is 86655855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55855663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8628 + ... + 13643.

It is an arithmetic number, because the mean of its divisors is an integer number (3118080).

Almost surely, 2^55855668 is an apocalyptic number.

It is an amenable number.

55855668 is an abundant number, since it is smaller than the sum of its proper divisors (93812172).

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

55855668 is a wasteful number, since it uses less digits than its factorization.

55855668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22308 (or 22306 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 48.

The square root of 55855668 is about 7473.6649643933. The cubic root of 55855668 is about 382.2572666449.

The spelling of 55855668 in words is "fifty-five million, eight hundred fifty-five thousand, six hundred sixty-eight".