56047617 has 12 divisors (see below), whose sum is σ = 81119844. Its totient is φ = 37290240.

The previous prime is 56047603. The next prime is 56047639. The reversal of 56047617 is 71674065.

It can be written as a sum of positive squares in 2 ways, for example, as 35034561 + 21013056 = 5919^2 + 4584^2 .

It is not a de Polignac number, because 56047617 - 2⁴ = 56047601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56047687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1288 + ... + 10665.

It is an arithmetic number, because the mean of its divisors is an integer number (6759987).

Almost surely, 2^56047617 is an apocalyptic number.

It is an amenable number.

56047617 is a deficient number, since it is larger than the sum of its proper divisors (25072227).

56047617 is a wasteful number, since it uses less digits than its factorization.

56047617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12480 (or 12477 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 56047617 is about 7486.4956421546. The cubic root of 56047617 is about 382.6946439816.

The spelling of 56047617 in words is "fifty-six million, forty-seven thousand, six hundred seventeen".