56581652811 has 8 divisors (see below), whose sum is σ = 75444497920. Its totient is φ = 37719954792.

The previous prime is 56581652807. The next prime is 56581652839. The reversal of 56581652811 is 11825618565.

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

It is not a de Polignac number, because 56581652811 - 2² = 56581652807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56581652111) 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, 164191 + ... + 374328.

It is an arithmetic number, because the mean of its divisors is an integer number (9430562240).

Almost surely, 2^56581652811 is an apocalyptic number.

56581652811 is a deficient number, since it is larger than the sum of its proper divisors (18862845109).

56581652811 is a wasteful number, since it uses less digits than its factorization.

56581652811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573545.

The product of its digits is 576000, while the sum is 48.

The spelling of 56581652811 in words is "fifty-six billion, five hundred eighty-one million, six hundred fifty-two thousand, eight hundred eleven".