56909211 has 8 divisors (see below), whose sum is σ = 78326784. Its totient is φ = 36715560.

The previous prime is 56909207. The next prime is 56909233. The reversal of 56909211 is 11290965.

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

It is not a de Polignac number, because 56909211 - 2² = 56909207 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (56909201) 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, 305871 + ... + 306056.

It is an arithmetic number, because the mean of its divisors is an integer number (9790848).

Almost surely, 2^56909211 is an apocalyptic number.

56909211 is a deficient number, since it is larger than the sum of its proper divisors (21417573).

56909211 is a wasteful number, since it uses less digits than its factorization.

56909211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611961.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 56909211 is about 7543.8193907331. The cubic root of 56909211 is about 384.6456761445.

The spelling of 56909211 in words is "fifty-six million, nine hundred nine thousand, two hundred eleven".