56051771217037 has 4 divisors (see below), whose sum is σ = 56051812922560. Its totient is φ = 56051729511516.

The previous prime is 56051771217023. The next prime is 56051771217067. The reversal of 56051771217037 is 73071217715065.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56051771217037 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 (56051771217067) 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, 18767253 + ... + 21547930.

It is an arithmetic number, because the mean of its divisors is an integer number (14012953230640).

Almost surely, 2^{56051771217037} is an apocalyptic number.

It is an amenable number.

56051771217037 is a deficient number, since it is larger than the sum of its proper divisors (41705523).

56051771217037 is a wasteful number, since it uses less digits than its factorization.

56051771217037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41705522.

The product of its (nonzero) digits is 2160900, while the sum is 52.

The spelling of 56051771217037 in words is "fifty-six trillion, fifty-one billion, seven hundred seventy-one million, two hundred seventeen thousand, thirty-seven".