22503044415521 has 2 divisors, whose sum is σ = 22503044415522. Its totient is φ = 22503044415520.

The previous prime is 22503044415503. The next prime is 22503044415571. The reversal of 22503044415521 is 12551444030522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19521772539025 + 2981271876496 = 4418345^2 + 1726636^2 .

It is a cyclic number.

It is not a de Polignac number, because 22503044415521 - 2¹⁴ = 22503044399137 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 (22503044415571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11251522207760 + 11251522207761.

It is an arithmetic number, because the mean of its divisors is an integer number (11251522207761).

Almost surely, 2^{22503044415521} is an apocalyptic number.

It is an amenable number.

22503044415521 is a deficient number, since it is larger than the sum of its proper divisors (1).

22503044415521 is an equidigital number, since it uses as much as digits as its factorization.

22503044415521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192000, while the sum is 38.

The spelling of 22503044415521 in words is "twenty-two trillion, five hundred three billion, forty-four million, four hundred fifteen thousand, five hundred twenty-one".