56151570311 has 4 divisors (see below), whose sum is σ = 56175037632. Its totient is φ = 56128102992.

The previous prime is 56151570227. The next prime is 56151570341. The reversal of 56151570311 is 11307515165.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56151570311 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 (56151570341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11730071 + ... + 11734856.

It is an arithmetic number, because the mean of its divisors is an integer number (14043759408).

Almost surely, 2^56151570311 is an apocalyptic number.

56151570311 is a deficient number, since it is larger than the sum of its proper divisors (23467321).

56151570311 is a wasteful number, since it uses less digits than its factorization.

56151570311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23467320.

The product of its (nonzero) digits is 15750, while the sum is 35.

The spelling of 56151570311 in words is "fifty-six billion, one hundred fifty-one million, five hundred seventy thousand, three hundred eleven".