56558461015 has 16 divisors (see below), whose sum is σ = 82128589632. Its totient is φ = 36501594624.

The previous prime is 56558461013. The next prime is 56558461031. The reversal of 56558461015 is 51016485565.

It is a cyclic number.

It is not a de Polignac number, because 56558461015 - 2¹ = 56558461013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56558461013) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 47527524 + ... + 47528713.

It is an arithmetic number, because the mean of its divisors is an integer number (5133036852).

Almost surely, 2^56558461015 is an apocalyptic number.

56558461015 is a deficient number, since it is larger than the sum of its proper divisors (25570128617).

56558461015 is a wasteful number, since it uses less digits than its factorization.

56558461015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95056266.

The product of its (nonzero) digits is 720000, while the sum is 46.

The spelling of 56558461015 in words is "fifty-six billion, five hundred fifty-eight million, four hundred sixty-one thousand, fifteen".