56164290 has 96 divisors (see below), whose sum is σ = 168920640. Its totient is φ = 11846016.

The previous prime is 56164279. The next prime is 56164307. The reversal of 56164290 is 9246165.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17641 + ... + 20579.

It is an arithmetic number, because the mean of its divisors is an integer number (1759590).

Almost surely, 2^56164290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56164290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84460320).

56164290 is an abundant number, since it is smaller than the sum of its proper divisors (112756350).

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

56164290 is a wasteful number, since it uses less digits than its factorization.

56164290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2976 (or 2969 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 56164290 is about 7494.2838216870. The cubic root of 56164290 is about 382.9600087315.

The spelling of 56164290 in words is "fifty-six million, one hundred sixty-four thousand, two hundred ninety".