56217472 has 16 divisors (see below), whose sum is σ = 111996000. Its totient is φ = 28108672.

The previous prime is 56217443. The next prime is 56217527. The reversal of 56217472 is 27471265.

56217472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 219472 + ... + 219727.

It is an arithmetic number, because the mean of its divisors is an integer number (6999750).

Almost surely, 2^56217472 is an apocalyptic number.

It is an amenable number.

56217472 is a deficient number, since it is larger than the sum of its proper divisors (55778528).

56217472 is an equidigital number, since it uses as much as digits as its factorization.

56217472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439213 (or 439201 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 56217472 is about 7497.8311530735. The cubic root of 56217472 is about 383.0808456203.

The spelling of 56217472 in words is "fifty-six million, two hundred seventeen thousand, four hundred seventy-two".