56125517065 has 8 divisors (see below), whose sum is σ = 67370514120. Its totient is φ = 44887151232.

The previous prime is 56125517029. The next prime is 56125517087. The reversal of 56125517065 is 56071552165.

It can be written as a sum of positive squares in 4 ways, for example, as 10614974841 + 45510542224 = 103029^2 + 213332^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56125517065 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1639164 + ... + 1673053.

It is an arithmetic number, because the mean of its divisors is an integer number (8421314265).

Almost surely, 2^56125517065 is an apocalyptic number.

It is an amenable number.

56125517065 is a deficient number, since it is larger than the sum of its proper divisors (11244997055).

56125517065 is a wasteful number, since it uses less digits than its factorization.

56125517065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3315611.

The product of its (nonzero) digits is 315000, while the sum is 43.

The spelling of 56125517065 in words is "fifty-six billion, one hundred twenty-five million, five hundred seventeen thousand, sixty-five".