56356321265 has 4 divisors (see below), whose sum is σ = 67627585524. Its totient is φ = 45085057008.

The previous prime is 56356321207. The next prime is 56356321331. The reversal of 56356321265 is 56212365365.

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 16338719329 + 40017601936 = 127823^2 + 200044^2 .

It is a cyclic number.

It is not a de Polignac number, because 56356321265 - 2²⁰ = 56355272689 is a prime.

It is a super-3 number, since 3×56356321265³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5635632122 + ... + 5635632131.

It is an arithmetic number, because the mean of its divisors is an integer number (16906896381).

Almost surely, 2^56356321265 is an apocalyptic number.

It is an amenable number.

56356321265 is a deficient number, since it is larger than the sum of its proper divisors (11271264259).

56356321265 is a wasteful number, since it uses less digits than its factorization.

56356321265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11271264258.

The product of its digits is 972000, while the sum is 44.

The spelling of 56356321265 in words is "fifty-six billion, three hundred fifty-six million, three hundred twenty-one thousand, two hundred sixty-five".