56999221132331 has 4 divisors (see below), whose sum is σ = 58539740622432. Its totient is φ = 55458701642232.

The previous prime is 56999221132327. The next prime is 56999221132361. The reversal of 56999221132331 is 13323112299965.

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 56999221132331 - 2² = 56999221132327 is a prime.

It is a super-2 number, since 2×56999221132331² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56999221132361) 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, 770259744995 + ... + 770259745068.

It is an arithmetic number, because the mean of its divisors is an integer number (14634935155608).

Almost surely, 2^{56999221132331} is an apocalyptic number.

56999221132331 is a deficient number, since it is larger than the sum of its proper divisors (1540519490101).

56999221132331 is a wasteful number, since it uses less digits than its factorization.

56999221132331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540519490100.

The product of its digits is 4723920, while the sum is 56.

The spelling of 56999221132331 in words is "fifty-six trillion, nine hundred ninety-nine billion, two hundred twenty-one million, one hundred thirty-two thousand, three hundred thirty-one".