56552166 has 96 divisors (see below), whose sum is σ = 144656928. Its totient is φ = 15774720.

The previous prime is 56552159. The next prime is 56552191. The reversal of 56552166 is 66125565.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 56552166.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 178240 + ... + 178556.

It is an arithmetic number, because the mean of its divisors is an integer number (1506843).

Almost surely, 2^56552166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56552166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72328464).

56552166 is an abundant number, since it is smaller than the sum of its proper divisors (88104762).

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

56552166 is a wasteful number, since it uses less digits than its factorization.

56552166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 403 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 56552166 is about 7520.1174192961. The cubic root of 56552166 is about 383.8395732861.

The spelling of 56552166 in words is "fifty-six million, five hundred fifty-two thousand, one hundred sixty-six".