56642322 has 16 divisors (see below), whose sum is σ = 123583392. Its totient is φ = 17164320.

The previous prime is 56642297. The next prime is 56642323. The reversal of 56642322 is 22324665.

It is a self number, because there is not a number n which added to its sum of digits gives 56642322.

It is not an unprimeable number, because it can be changed into a prime (56642323) 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, 429043 + ... + 429174.

It is an arithmetic number, because the mean of its divisors is an integer number (7723962).

Almost surely, 2^56642322 is an apocalyptic number.

56642322 is an abundant number, since it is smaller than the sum of its proper divisors (66941070).

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

56642322 is a wasteful number, since it uses less digits than its factorization.

56642322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858233.

The product of its digits is 17280, while the sum is 30.

The square root of 56642322 is about 7526.1093534442. The cubic root of 56642322 is about 384.0434385539.

Adding to 56642322 its reverse (22324665), we get a palindrome (78966987).

The spelling of 56642322 in words is "fifty-six million, six hundred forty-two thousand, three hundred twenty-two".