55613166 has 16 divisors (see below), whose sum is σ = 127115904. Its totient is φ = 15889464.

The previous prime is 55613161. The next prime is 55613167. The reversal of 55613166 is 66131655.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55613161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662020 + ... + 662103.

It is an arithmetic number, because the mean of its divisors is an integer number (7944744).

Almost surely, 2^55613166 is an apocalyptic number.

55613166 is an abundant number, since it is smaller than the sum of its proper divisors (71502738).

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

55613166 is a wasteful number, since it uses less digits than its factorization.

55613166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324135.

The product of its digits is 16200, while the sum is 33.

The square root of 55613166 is about 7457.4235497255. The cubic root of 55613166 is about 381.7032636121.

The spelling of 55613166 in words is "fifty-five million, six hundred thirteen thousand, one hundred sixty-six".