56611722 has 32 divisors (see below), whose sum is σ = 115182144. Its totient is φ = 18547200.

The previous prime is 56611679. The next prime is 56611729. The reversal of 56611722 is 22711665.

It is a self number, because there is not a number n which added to its sum of digits gives 56611722.

It is not an unprimeable number, because it can be changed into a prime (56611729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122572 + ... + 123032.

It is an arithmetic number, because the mean of its divisors is an integer number (3599442).

Almost surely, 2^56611722 is an apocalyptic number.

56611722 is an abundant number, since it is smaller than the sum of its proper divisors (58570422).

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

56611722 is a wasteful number, since it uses less digits than its factorization.

56611722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774.

The product of its digits is 5040, while the sum is 30.

The square root of 56611722 is about 7524.0761559144. The cubic root of 56611722 is about 383.9742685666.

The spelling of 56611722 in words is "fifty-six million, six hundred eleven thousand, seven hundred twenty-two".