22530501481 has 2 divisors, whose sum is σ = 22530501482. Its totient is φ = 22530501480.

The previous prime is 22530501451. The next prime is 22530501509. The reversal of 22530501481 is 18410503522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17129574400 + 5400927081 = 130880^2 + 73491^2 .

It is a cyclic number.

It is not a de Polignac number, because 22530501481 - 2¹⁷ = 22530370409 is a prime.

It is a super-2 number, since 2×22530501481² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22530501451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11265250740 + 11265250741.

It is an arithmetic number, because the mean of its divisors is an integer number (11265250741).

Almost surely, 2^22530501481 is an apocalyptic number.

It is an amenable number.

22530501481 is a deficient number, since it is larger than the sum of its proper divisors (1).

22530501481 is an equidigital number, since it uses as much as digits as its factorization.

22530501481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 22530501481 in words is "twenty-two billion, five hundred thirty million, five hundred one thousand, four hundred eighty-one".