56550510565 has 8 divisors (see below), whose sum is σ = 68011752600. Its totient is φ = 45139648512.

The previous prime is 56550510509. The next prime is 56550510683. The reversal of 56550510565 is 56501505565.

It can be written as a sum of positive squares in 4 ways, for example, as 20845006884 + 35705503681 = 144378^2 + 188959^2 .

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 56550510565 - 2³³ = 47960575973 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12592524 + ... + 12597013.

It is an arithmetic number, because the mean of its divisors is an integer number (8501469075).

Almost surely, 2^56550510565 is an apocalyptic number.

It is an amenable number.

56550510565 is a deficient number, since it is larger than the sum of its proper divisors (11461242035).

56550510565 is a wasteful number, since it uses less digits than its factorization.

56550510565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25189991.

The product of its (nonzero) digits is 562500, while the sum is 43.

The spelling of 56550510565 in words is "fifty-six billion, five hundred fifty million, five hundred ten thousand, five hundred sixty-five".