22540353247 has 2 divisors, whose sum is σ = 22540353248. Its totient is φ = 22540353246.

The previous prime is 22540353229. The next prime is 22540353307. The reversal of 22540353247 is 74235304522.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22540353247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22540353217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11270176623 + 11270176624.

It is an arithmetic number, because the mean of its divisors is an integer number (11270176624).

Almost surely, 2^22540353247 is an apocalyptic number.

22540353247 is a deficient number, since it is larger than the sum of its proper divisors (1).

22540353247 is an equidigital number, since it uses as much as digits as its factorization.

22540353247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 37.

Adding to 22540353247 its reverse (74235304522), we get a palindrome (96775657769).

The spelling of 22540353247 in words is "twenty-two billion, five hundred forty million, three hundred fifty-three thousand, two hundred forty-seven".