56605061015 has 4 divisors (see below), whose sum is σ = 67926073224. Its totient is φ = 45284048808.

The previous prime is 56605060991. The next prime is 56605061027. The reversal of 56605061015 is 51016050665.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51016050665 = 5 ⋅10203210133.

It is a cyclic number.

It is not a de Polignac number, because 56605061015 - 2¹⁰ = 56605059991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5660506097 + ... + 5660506106.

It is an arithmetic number, because the mean of its divisors is an integer number (16981518306).

Almost surely, 2^56605061015 is an apocalyptic number.

56605061015 is a deficient number, since it is larger than the sum of its proper divisors (11321012209).

56605061015 is a wasteful number, since it uses less digits than its factorization.

56605061015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11321012208.

The product of its (nonzero) digits is 27000, while the sum is 35.

The spelling of 56605061015 in words is "fifty-six billion, six hundred five million, sixty-one thousand, fifteen".