56160220 has 48 divisors (see below), whose sum is σ = 122572800. Its totient is φ = 21591360.

The previous prime is 56160217. The next prime is 56160229. The reversal of 56160220 is 2206165.

It is a junction number, because it is equal to n+sod(n) for n = 56160191 and 56160200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56160229) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 147991 + ... + 148369.

It is an arithmetic number, because the mean of its divisors is an integer number (2553600).

Almost surely, 2^56160220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56160220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61286400).

56160220 is an abundant number, since it is smaller than the sum of its proper divisors (66412580).

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

56160220 is a wasteful number, since it uses less digits than its factorization.

56160220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658 (or 656 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 56160220 is about 7494.0122764778. The cubic root of 56160220 is about 382.9507579847.

Adding to 56160220 its reverse (2206165), we get a palindrome (58366385).

The spelling of 56160220 in words is "fifty-six million, one hundred sixty thousand, two hundred twenty".