22255561547 has 2 divisors, whose sum is σ = 22255561548. Its totient is φ = 22255561546.

The previous prime is 22255561529. The next prime is 22255561567. The reversal of 22255561547 is 74516555222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22255561547 - 2⁶ = 22255561483 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22255561498 and 22255561507.

It is not a weakly prime, because it can be changed into another prime (22255561567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11127780773 + 11127780774.

It is an arithmetic number, because the mean of its divisors is an integer number (11127780774).

Almost surely, 2^22255561547 is an apocalyptic number.

22255561547 is a deficient number, since it is larger than the sum of its proper divisors (1).

22255561547 is an equidigital number, since it uses as much as digits as its factorization.

22255561547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840000, while the sum is 44.

The spelling of 22255561547 in words is "twenty-two billion, two hundred fifty-five million, five hundred sixty-one thousand, five hundred forty-seven".