56516166 has 48 divisors (see below), whose sum is σ = 141362208. Its totient is φ = 15984000.

The previous prime is 56516113. The next prime is 56516167. The reversal of 56516166 is 66161565.

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 56516166.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56516167) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10506 + ... + 14946.

It is an arithmetic number, because the mean of its divisors is an integer number (2945046).

Almost surely, 2^56516166 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56516166, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70681104).

56516166 is an abundant number, since it is smaller than the sum of its proper divisors (84846042).

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

56516166 is a wasteful number, since it uses less digits than its factorization.

56516166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4557 (or 4554 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 56516166 is about 7517.7234586010. The cubic root of 56516166 is about 383.7581077485.

The spelling of 56516166 in words is "fifty-six million, five hundred sixteen thousand, one hundred sixty-six".