56223642 has 16 divisors (see below), whose sum is σ = 113193792. Its totient is φ = 18616800.

The previous prime is 56223623. The next prime is 56223647. The reversal of 56223642 is 24632265.

It is a super-2 number, since 2×56223642² = 6322195839488328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56223647) 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, 30123 + ... + 31934.

It is an arithmetic number, because the mean of its divisors is an integer number (7074612).

Almost surely, 2^56223642 is an apocalyptic number.

56223642 is an abundant number, since it is smaller than the sum of its proper divisors (56970150).

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

56223642 is a wasteful number, since it uses less digits than its factorization.

56223642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62213.

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

The square root of 56223642 is about 7498.2425941016. The cubic root of 56223642 is about 383.0948597827.

It can be divided in two parts, 56223 and 642, that added together give a palindrome (56865).

The spelling of 56223642 in words is "fifty-six million, two hundred twenty-three thousand, six hundred forty-two".