56404317 has 32 divisors (see below), whose sum is σ = 83130624. Its totient is φ = 33868800.

The previous prime is 56404307. The next prime is 56404319. The reversal of 56404317 is 71340465.

It is not a de Polignac number, because 56404317 - 2¹⁰ = 56403293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56404319) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133767 + ... + 134187.

It is an arithmetic number, because the mean of its divisors is an integer number (2597832).

Almost surely, 2^56404317 is an apocalyptic number.

It is an amenable number.

56404317 is a deficient number, since it is larger than the sum of its proper divisors (26726307).

56404317 is a wasteful number, since it uses less digits than its factorization.

56404317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 56404317 is about 7510.2807537402. The cubic root of 56404317 is about 383.5047801873.

The spelling of 56404317 in words is "fifty-six million, four hundred four thousand, three hundred seventeen".