56223604 has 12 divisors (see below), whose sum is σ = 98743428. Its totient is φ = 28011200.

The previous prime is 56223581. The next prime is 56223611. The reversal of 56223604 is 40632265.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 38415204 + 17808400 = 6198^2 + 4220^2 .

It is a super-2 number, since 2×56223604² = 6322187293497632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23887 + ... + 26134.

It is an arithmetic number, because the mean of its divisors is an integer number (8228619).

Almost surely, 2^56223604 is an apocalyptic number.

It is an amenable number.

56223604 is a deficient number, since it is larger than the sum of its proper divisors (42519824).

56223604 is a wasteful number, since it uses less digits than its factorization.

56223604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50306 (or 50304 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 56223604 is about 7498.2400601741. The cubic root of 56223604 is about 383.0947734750.

Adding to 56223604 its reverse (40632265), we get a palindrome (96855869).

The spelling of 56223604 in words is "fifty-six million, two hundred twenty-three thousand, six hundred four".