56280004 has 45 divisors (see below), whose sum is σ = 111945855. Its totient is φ = 24756600.

The previous prime is 56280001. The next prime is 56280017. The reversal of 56280004 is 40008265.

The square root of 56280004 is 7502.

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

56280004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56280001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1815469 + ... + 1815499.

Almost surely, 2^56280004 is an apocalyptic number.

56280004 is the 7502-nd square number.

It is an amenable number.

56280004 is a deficient number, since it is larger than the sum of its proper divisors (55665851).

56280004 is an equidigital number, since it uses as much as digits as its factorization.

56280004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The cubic root of 56280004 is about 383.2228295637. Note that the first 3 decimals are identical.

Multiplying 56280004 by its sum of digits (25), we get a square (1407000100 = 37510²).

Adding to 56280004 its reverse (40008265), we get a palindrome (96288269).

The spelling of 56280004 in words is "fifty-six million, two hundred eighty thousand, four".