56576018081 has 8 divisors (see below), whose sum is σ = 61789678464. Its totient is φ = 51374088720.

The previous prime is 56576018029. The next prime is 56576018089. The reversal of 56576018081 is 18081067565.

It is a happy number.

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 56576018081 - 2²⁶ = 56508909217 is a prime.

It is a super-3 number, since 3×56576018081³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56576018089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2922665 + ... + 2941958.

It is an arithmetic number, because the mean of its divisors is an integer number (7723709808).

Almost surely, 2^56576018081 is an apocalyptic number.

It is an amenable number.

56576018081 is a deficient number, since it is larger than the sum of its proper divisors (5213660383).

56576018081 is a wasteful number, since it uses less digits than its factorization.

56576018081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5865511.

The product of its (nonzero) digits is 403200, while the sum is 47.

The spelling of 56576018081 in words is "fifty-six billion, five hundred seventy-six million, eighteen thousand, eighty-one".