22524642493 has 2 divisors, whose sum is σ = 22524642494. Its totient is φ = 22524642492.

The previous prime is 22524642487. The next prime is 22524642521. The reversal of 22524642493 is 39424642522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21749465529 + 775176964 = 147477^2 + 27842^2 .

It is a cyclic number.

It is not a de Polignac number, because 22524642493 - 2²¹ = 22522545341 is a prime.

It is a super-2 number, since 2×22524642493² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22524642593) 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, 11262321246 + 11262321247.

It is an arithmetic number, because the mean of its divisors is an integer number (11262321247).

Almost surely, 2^22524642493 is an apocalyptic number.

It is an amenable number.

22524642493 is a deficient number, since it is larger than the sum of its proper divisors (1).

22524642493 is an equidigital number, since it uses as much as digits as its factorization.

22524642493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 829440, while the sum is 43.

The spelling of 22524642493 in words is "twenty-two billion, five hundred twenty-four million, six hundred forty-two thousand, four hundred ninety-three".