56317969 has 8 divisors (see below), whose sum is σ = 58017960. Its totient is φ = 54633600.

The previous prime is 56317949. The next prime is 56317999. The reversal of 56317969 is 96971365.

It can be written as a sum of positive squares in 4 ways, for example, as 16160400 + 40157569 = 4020^2 + 6337^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56317969 - 2⁷ = 56317841 is a prime.

It is a super-2 number, since 2×56317969² = 6343427264569922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56317949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3627 + ... + 11215.

It is an arithmetic number, because the mean of its divisors is an integer number (7252245).

Almost surely, 2^56317969 is an apocalyptic number.

It is an amenable number.

56317969 is a deficient number, since it is larger than the sum of its proper divisors (1699991).

56317969 is a wasteful number, since it uses less digits than its factorization.

56317969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7811.

The product of its digits is 306180, while the sum is 46.

The square root of 56317969 is about 7504.5298986679. The cubic root of 56317969 is about 383.3089808516.

The spelling of 56317969 in words is "fifty-six million, three hundred seventeen thousand, nine hundred sixty-nine".