56398722 has 16 divisors (see below), whose sum is σ = 112887840. Its totient is φ = 18784512.

The previous prime is 56398681. The next prime is 56398723. The reversal of 56398722 is 22789365.

It is not an unprimeable number, because it can be changed into a prime (56398723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6498 + ... + 12450.

It is an arithmetic number, because the mean of its divisors is an integer number (7055490).

Almost surely, 2^56398722 is an apocalyptic number.

56398722 is an abundant number, since it is smaller than the sum of its proper divisors (56489118).

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

56398722 is a wasteful number, since it uses less digits than its factorization.

56398722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7537.

The product of its digits is 181440, while the sum is 42.

The square root of 56398722 is about 7509.9082550987. The cubic root of 56398722 is about 383.4920992419.

The spelling of 56398722 in words is "fifty-six million, three hundred ninety-eight thousand, seven hundred twenty-two".