56289617 has 8 divisors (see below), whose sum is σ = 57926592. Its totient is φ = 54658800.

The previous prime is 56289613. The next prime is 56289619. The reversal of 56289617 is 71698265.

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

It is a cyclic number.

It is not a de Polignac number, because 56289617 - 2² = 56289613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56289613) 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, 22142 + ... + 24552.

It is an arithmetic number, because the mean of its divisors is an integer number (7240824).

Almost surely, 2^56289617 is an apocalyptic number.

It is an amenable number.

56289617 is a deficient number, since it is larger than the sum of its proper divisors (1636975).

56289617 is a wasteful number, since it uses less digits than its factorization.

56289617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079.

The product of its digits is 181440, while the sum is 44.

The square root of 56289617 is about 7502.6406684580. The cubic root of 56289617 is about 383.2446473265.

The spelling of 56289617 in words is "fifty-six million, two hundred eighty-nine thousand, six hundred seventeen".