56567217 has 16 divisors (see below), whose sum is σ = 87958400. Its totient is φ = 32323536.

The previous prime is 56567209. The next prime is 56567227. The reversal of 56567217 is 71276565.

It is not a de Polignac number, because 56567217 - 2³ = 56567209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56567227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26458 + ... + 28515.

It is an arithmetic number, because the mean of its divisors is an integer number (5497400).

Almost surely, 2^56567217 is an apocalyptic number.

It is an amenable number.

56567217 is a deficient number, since it is larger than the sum of its proper divisors (31391183).

56567217 is an equidigital number, since it uses as much as digits as its factorization.

56567217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54997 (or 54983 counting only the distinct ones).

The product of its digits is 88200, while the sum is 39.

The square root of 56567217 is about 7521.1180684789. The cubic root of 56567217 is about 383.8736224209.

The spelling of 56567217 in words is "fifty-six million, five hundred sixty-seven thousand, two hundred seventeen".