56220004 has 27 divisors (see below), whose sum is σ = 103483443. Its totient is φ = 26722872.

The previous prime is 56219987. The next prime is 56220007. The reversal of 56220004 is 40002265.

The square root of 56220004 is 7498.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56220007) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 344827 + ... + 344989.

Almost surely, 2^56220004 is an apocalyptic number.

56220004 is the 7498-th square number.

It is an amenable number.

56220004 is a deficient number, since it is larger than the sum of its proper divisors (47263439).

56220004 is a wasteful number, since it uses less digits than its factorization.

56220004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The cubic root of 56220004 is about 383.0865967750.

Adding to 56220004 its reverse (40002265), we get a palindrome (96222269).

The spelling of 56220004 in words is "fifty-six million, two hundred twenty thousand, four".