56408217 has 8 divisors (see below), whose sum is σ = 76960224. Its totient is φ = 36730848.

The previous prime is 56408203. The next prime is 56408237. The reversal of 56408217 is 71280465.

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

It is not a de Polignac number, because 56408217 - 2⁷ = 56408089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56408237) 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, 218508 + ... + 218765.

It is an arithmetic number, because the mean of its divisors is an integer number (9620028).

Almost surely, 2^56408217 is an apocalyptic number.

It is an amenable number.

56408217 is a deficient number, since it is larger than the sum of its proper divisors (20552007).

56408217 is a wasteful number, since it uses less digits than its factorization.

56408217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437319.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 56408217 is about 7510.5403933405. The cubic root of 56408217 is about 383.5136189562.

The spelling of 56408217 in words is "fifty-six million, four hundred eight thousand, two hundred seventeen".