22555545473 has 2 divisors, whose sum is σ = 22555545474. Its totient is φ = 22555545472.

The previous prime is 22555545433. The next prime is 22555545577. The reversal of 22555545473 is 37454555522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20195820544 + 2359724929 = 142112^2 + 48577^2 .

It is a cyclic number.

It is not a de Polignac number, because 22555545473 - 2¹² = 22555541377 is a prime.

It is not a weakly prime, because it can be changed into another prime (22555545433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11277772736 + 11277772737.

It is an arithmetic number, because the mean of its divisors is an integer number (11277772737).

Almost surely, 2^22555545473 is an apocalyptic number.

It is an amenable number.

22555545473 is a deficient number, since it is larger than the sum of its proper divisors (1).

22555545473 is an equidigital number, since it uses as much as digits as its factorization.

22555545473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4200000, while the sum is 47.

The spelling of 22555545473 in words is "twenty-two billion, five hundred fifty-five million, five hundred forty-five thousand, four hundred seventy-three".