22505244522437 has 2 divisors, whose sum is σ = 22505244522438. Its totient is φ = 22505244522436.

The previous prime is 22505244522421. The next prime is 22505244522457. The reversal of 22505244522437 is 73422544250522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17189573052961 + 5315671469476 = 4146031^2 + 2305574^2 .

It is a cyclic number.

It is not a de Polignac number, because 22505244522437 - 2⁴ = 22505244522421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22505244522391 and 22505244522400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22505244522457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11252622261218 + 11252622261219.

It is an arithmetic number, because the mean of its divisors is an integer number (11252622261219).

Almost surely, 2^{22505244522437} is an apocalyptic number.

It is an amenable number.

22505244522437 is a deficient number, since it is larger than the sum of its proper divisors (1).

22505244522437 is an equidigital number, since it uses as much as digits as its factorization.

22505244522437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376000, while the sum is 47.

Adding to 22505244522437 its reverse (73422544250522), we get a palindrome (95927788772959).

The spelling of 22505244522437 in words is "twenty-two trillion, five hundred five billion, two hundred forty-four million, five hundred twenty-two thousand, four hundred thirty-seven".