56611411251 has 4 divisors (see below), whose sum is σ = 75481881672. Its totient is φ = 37740940832.

The previous prime is 56611411249. The next prime is 56611411301. The reversal of 56611411251 is 15211411665.

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

It is a cyclic number.

It is not a de Polignac number, because 56611411251 - 2¹ = 56611411249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56611411201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9435235206 + ... + 9435235211.

It is an arithmetic number, because the mean of its divisors is an integer number (18870470418).

Almost surely, 2^56611411251 is an apocalyptic number.

56611411251 is a deficient number, since it is larger than the sum of its proper divisors (18870470421).

56611411251 is a wasteful number, since it uses less digits than its factorization.

56611411251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18870470420.

The product of its digits is 7200, while the sum is 33.

The spelling of 56611411251 in words is "fifty-six billion, six hundred eleven million, four hundred eleven thousand, two hundred fifty-one".