56651211 has 8 divisors (see below), whose sum is σ = 83927760. Its totient is φ = 37767456.

The previous prime is 56651159. The next prime is 56651219. The reversal of 56651211 is 11215665.

It is a happy number.

56651211 is a `hidden beast` number, since 5 + 6 + 651 + 2 + 1 + 1 = 666.

It is not a de Polignac number, because 56651211 - 2²² = 52456907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 2098193 = 56651211 / (5 + 6 + 6 + 5 + 1 + 2 + 1 + 1).

It is not an unprimeable number, because it can be changed into a prime (56651219) 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, 1049070 + ... + 1049123.

It is an arithmetic number, because the mean of its divisors is an integer number (10490970).

Almost surely, 2^56651211 is an apocalyptic number.

56651211 is a deficient number, since it is larger than the sum of its proper divisors (27276549).

56651211 is a wasteful number, since it uses less digits than its factorization.

56651211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098202 (or 2098196 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 56651211 is about 7526.6998744470. The cubic root of 56651211 is about 384.0635270875.

Adding to 56651211 its reverse (11215665), we get a palindrome (67866876).

The spelling of 56651211 in words is "fifty-six million, six hundred fifty-one thousand, two hundred eleven".