22256994547 has 2 divisors, whose sum is σ = 22256994548. Its totient is φ = 22256994546.

The previous prime is 22256994523. The next prime is 22256994553. The reversal of 22256994547 is 74549965222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22256994547 is a prime.

It is not a weakly prime, because it can be changed into another prime (22256995547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11128497273 + 11128497274.

It is an arithmetic number, because the mean of its divisors is an integer number (11128497274).

Almost surely, 2^22256994547 is an apocalyptic number.

22256994547 is a deficient number, since it is larger than the sum of its proper divisors (1).

22256994547 is an equidigital number, since it uses as much as digits as its factorization.

22256994547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 55.

The spelling of 22256994547 in words is "twenty-two billion, two hundred fifty-six million, nine hundred ninety-four thousand, five hundred forty-seven".