22403251553 has 2 divisors, whose sum is σ = 22403251554. Its totient is φ = 22403251552.

The previous prime is 22403251537. The next prime is 22403251567. The reversal of 22403251553 is 35515230422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13757413264 + 8645838289 = 117292^2 + 92983^2 .

It is a cyclic number.

It is not a de Polignac number, because 22403251553 - 2⁴ = 22403251537 is a prime.

It is not a weakly prime, because it can be changed into another prime (22403251573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11201625776 + 11201625777.

It is an arithmetic number, because the mean of its divisors is an integer number (11201625777).

Almost surely, 2^22403251553 is an apocalyptic number.

It is an amenable number.

22403251553 is a deficient number, since it is larger than the sum of its proper divisors (1).

22403251553 is an equidigital number, since it uses as much as digits as its factorization.

22403251553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 22403251553 its reverse (35515230422), we get a palindrome (57918481975).

The spelling of 22403251553 in words is "twenty-two billion, four hundred three million, two hundred fifty-one thousand, five hundred fifty-three".