56051771275221 has 32 divisors (see below), whose sum is σ = 75637710213120. Its totient is φ = 36919034498304.

The previous prime is 56051771275217. The next prime is 56051771275231. The reversal of 56051771275221 is 12257217715065.

It is not a de Polignac number, because 56051771275221 - 2² = 56051771275217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56051771275211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 304525600 + ... + 304709606.

It is an arithmetic number, because the mean of its divisors is an integer number (2363678444160).

Almost surely, 2^{56051771275221} is an apocalyptic number.

It is an amenable number.

56051771275221 is a deficient number, since it is larger than the sum of its proper divisors (19585938937899).

56051771275221 is a wasteful number, since it uses less digits than its factorization.

56051771275221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186985.

The product of its (nonzero) digits is 2058000, while the sum is 51.

The spelling of 56051771275221 in words is "fifty-six trillion, fifty-one billion, seven hundred seventy-one million, two hundred seventy-five thousand, two hundred twenty-one".