22506547313 has 2 divisors, whose sum is σ = 22506547314. Its totient is φ = 22506547312.

The previous prime is 22506547307. The next prime is 22506547363. The reversal of 22506547313 is 31374560522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16232798464 + 6273748849 = 127408^2 + 79207^2 .

It is a cyclic number.

It is not a de Polignac number, because 22506547313 - 2⁶ = 22506547249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22506547363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11253273656 + 11253273657.

It is an arithmetic number, because the mean of its divisors is an integer number (11253273657).

Almost surely, 2^22506547313 is an apocalyptic number.

It is an amenable number.

22506547313 is a deficient number, since it is larger than the sum of its proper divisors (1).

22506547313 is an equidigital number, since it uses as much as digits as its factorization.

22506547313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 38.

The spelling of 22506547313 in words is "twenty-two billion, five hundred six million, five hundred forty-seven thousand, three hundred thirteen".