55913166 has 20 divisors (see below), whose sum is σ = 125287272. Its totient is φ = 18637668.

The previous prime is 55913113. The next prime is 55913197. The reversal of 55913166 is 66131955.

55913166 is a `hidden beast` number, since 5 + 591 + 3 + 1 + 66 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55913166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 172410 + ... + 172733.

Almost surely, 2^55913166 is an apocalyptic number.

55913166 is an abundant number, since it is smaller than the sum of its proper divisors (69374106).

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

55913166 is a wasteful number, since it uses less digits than its factorization.

55913166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345157 (or 345148 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 55913166 is about 7477.5106820385. The cubic root of 55913166 is about 382.3883872733.

The spelling of 55913166 in words is "fifty-five million, nine hundred thirteen thousand, one hundred sixty-six".