22255520393 has 2 divisors, whose sum is σ = 22255520394. Its totient is φ = 22255520392.

The previous prime is 22255520381. The next prime is 22255520459. The reversal of 22255520393 is 39302555222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21763035529 + 492484864 = 147523^2 + 22192^2 .

It is a cyclic number.

It is not a de Polignac number, because 22255520393 - 2⁴ = 22255520377 is a prime.

It is not a weakly prime, because it can be changed into another prime (22255520333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11127760196 + 11127760197.

It is an arithmetic number, because the mean of its divisors is an integer number (11127760197).

Almost surely, 2^22255520393 is an apocalyptic number.

It is an amenable number.

22255520393 is a deficient number, since it is larger than the sum of its proper divisors (1).

22255520393 is an equidigital number, since it uses as much as digits as its factorization.

22255520393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162000, while the sum is 38.

The spelling of 22255520393 in words is "twenty-two billion, two hundred fifty-five million, five hundred twenty thousand, three hundred ninety-three".