22490557459 has 2 divisors, whose sum is σ = 22490557460. Its totient is φ = 22490557458.

The previous prime is 22490557457. The next prime is 22490557471. The reversal of 22490557459 is 95475509422.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22490557459 - 2¹ = 22490557457 is a prime.

Together with 22490557457, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (22490557457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11245278729 + 11245278730.

It is an arithmetic number, because the mean of its divisors is an integer number (11245278730).

Almost surely, 2^22490557459 is an apocalyptic number.

22490557459 is a deficient number, since it is larger than the sum of its proper divisors (1).

22490557459 is an equidigital number, since it uses as much as digits as its factorization.

22490557459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536000, while the sum is 52.

The spelling of 22490557459 in words is "twenty-two billion, four hundred ninety million, five hundred fifty-seven thousand, four hundred fifty-nine".