56530203565 has 12 divisors (see below), whose sum is σ = 74563806492. Its totient is φ = 41112874880.

The previous prime is 56530203557. The next prime is 56530203637.

56530203565 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 32834527209 + 23695676356 = 181203^2 + 153934^2 .

It is not a de Polignac number, because 56530203565 - 2³ = 56530203557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46718572 + ... + 46719781.

It is an arithmetic number, because the mean of its divisors is an integer number (6213650541).

Almost surely, 2^56530203565 is an apocalyptic number.

56530203565 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

56530203565 is a deficient number, since it is larger than the sum of its proper divisors (18033602927).

56530203565 is a wasteful number, since it uses less digits than its factorization.

56530203565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93438380 (or 93438369 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 40.

The spelling of 56530203565 in words is "fifty-six billion, five hundred thirty million, two hundred three thousand, five hundred sixty-five".