55666662 has 32 divisors (see below), whose sum is σ = 113012064. Its totient is φ = 18278400.

The previous prime is 55666657. The next prime is 55666679. The reversal of 55666662 is 26666655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197962 + ... + 198242.

It is an arithmetic number, because the mean of its divisors is an integer number (3531627).

Almost surely, 2^55666662 is an apocalyptic number.

55666662 is an abundant number, since it is smaller than the sum of its proper divisors (57345402).

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

55666662 is a wasteful number, since it uses less digits than its factorization.

55666662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664.

The product of its digits is 388800, while the sum is 42.

The square root of 55666662 is about 7461.0094491295. The cubic root of 55666662 is about 381.8256150583.

The spelling of 55666662 in words is "fifty-five million, six hundred sixty-six thousand, six hundred sixty-two".