55510666 has 16 divisors (see below), whose sum is σ = 89516160. Its totient is φ = 25734240.

The previous prime is 55510657. The next prime is 55510673. The reversal of 55510666 is 66601555.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13755 + ... + 17326.

It is an arithmetic number, because the mean of its divisors is an integer number (5594760).

Almost surely, 2^55510666 is an apocalyptic number.

55510666 is a deficient number, since it is larger than the sum of its proper divisors (34005494).

55510666 is a wasteful number, since it uses less digits than its factorization.

55510666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31149.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 55510666 is about 7450.5480335342. The cubic root of 55510666 is about 381.4686150647.

The spelling of 55510666 in words is "fifty-five million, five hundred ten thousand, six hundred sixty-six".