56511051711 has 8 divisors (see below), whose sum is σ = 76472667264. Its totient is φ = 37111735320.

The previous prime is 56511051691. The next prime is 56511051733. The reversal of 56511051711 is 11715011565.

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

It is not a de Polignac number, because 56511051711 - 2⁵ = 56511051679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56511031711) 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, 140574555 + ... + 140574956.

It is an arithmetic number, because the mean of its divisors is an integer number (9559083408).

Almost surely, 2^56511051711 is an apocalyptic number.

56511051711 is a deficient number, since it is larger than the sum of its proper divisors (19961615553).

56511051711 is a wasteful number, since it uses less digits than its factorization.

56511051711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281149581.

The product of its (nonzero) digits is 5250, while the sum is 33.

The spelling of 56511051711 in words is "fifty-six billion, five hundred eleven million, fifty-one thousand, seven hundred eleven".