56922802217 has 2 divisors, whose sum is σ = 56922802218. Its totient is φ = 56922802216.

The previous prime is 56922802213. The next prime is 56922802231. The reversal of 56922802217 is 71220822965.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48000866281 + 8921935936 = 219091^2 + 94456^2 .

It is a cyclic number.

It is not a de Polignac number, because 56922802217 - 2² = 56922802213 is a prime.

It is not a weakly prime, because it can be changed into another prime (56922802213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28461401108 + 28461401109.

It is an arithmetic number, because the mean of its divisors is an integer number (28461401109).

Almost surely, 2^56922802217 is an apocalyptic number.

It is an amenable number.

56922802217 is a deficient number, since it is larger than the sum of its proper divisors (1).

56922802217 is an equidigital number, since it uses as much as digits as its factorization.

56922802217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 44.

The spelling of 56922802217 in words is "fifty-six billion, nine hundred twenty-two million, eight hundred two thousand, two hundred seventeen".