56355017 has 4 divisors (see below), whose sum is σ = 59670036. Its totient is φ = 53040000.

The previous prime is 56354957. The next prime is 56355031. The reversal of 56355017 is 71055365.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 52258441 + 4096576 = 7229^2 + 2024^2 .

It is not a de Polignac number, because 56355017 - 2²⁰ = 55306441 is a prime.

It is a super-3 number, since 3×56355017³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56355077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1657484 + ... + 1657517.

It is an arithmetic number, because the mean of its divisors is an integer number (14917509).

Almost surely, 2^56355017 is an apocalyptic number.

It is an amenable number.

56355017 is a deficient number, since it is larger than the sum of its proper divisors (3315019).

56355017 is a wasteful number, since it uses less digits than its factorization.

56355017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3315018.

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 56355017 is about 7506.9978686556. The cubic root of 56355017 is about 383.3930139383.

Adding to 56355017 its sum of digits (32), we get a square (56355049 = 7507²).

The spelling of 56355017 in words is "fifty-six million, three hundred fifty-five thousand, seventeen".