56408218 has 8 divisors (see below), whose sum is σ = 86208948. Its totient is φ = 27671904.

The previous prime is 56408203. The next prime is 56408237. The reversal of 56408218 is 81280465.

It can be written as a sum of positive squares in 2 ways, for example, as 56145049 + 263169 = 7493^2 + 513^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265971 + ... + 266182.

Almost surely, 2^56408218 is an apocalyptic number.

56408218 is a deficient number, since it is larger than the sum of its proper divisors (29800730).

56408218 is a wasteful number, since it uses less digits than its factorization.

56408218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532208.

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 56408218 is about 7510.5404599137. The cubic root of 56408218 is about 383.5136212225.

The spelling of 56408218 in words is "fifty-six million, four hundred eight thousand, two hundred eighteen".