56651289 has 8 divisors (see below), whose sum is σ = 75579840. Its totient is φ = 37745136.

The previous prime is 56651279. The next prime is 56651317. The reversal of 56651289 is 98215665.

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

It is not a de Polignac number, because 56651289 - 2⁹ = 56650777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56651289.

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, 1644 + ... + 10770.

It is an arithmetic number, because the mean of its divisors is an integer number (9447480).

Almost surely, 2^56651289 is an apocalyptic number.

It is an amenable number.

56651289 is a deficient number, since it is larger than the sum of its proper divisors (18928551).

56651289 is a wasteful number, since it uses less digits than its factorization.

56651289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11199.

The product of its digits is 129600, while the sum is 42.

The square root of 56651289 is about 7526.7050559989. The cubic root of 56651289 is about 384.0637033528.

The spelling of 56651289 in words is "fifty-six million, six hundred fifty-one thousand, two hundred eighty-nine".