22730125409 has 2 divisors, whose sum is σ = 22730125410. Its totient is φ = 22730125408.

The previous prime is 22730125367. The next prime is 22730125421. The reversal of 22730125409 is 90452103722.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13156090000 + 9574035409 = 114700^2 + 97847^2 .

It is a cyclic number.

It is not a de Polignac number, because 22730125409 - 2¹² = 22730121313 is a prime.

It is a super-4 number, since 4×22730125409⁴ (a number of 43 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22730125309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11365062704 + 11365062705.

It is an arithmetic number, because the mean of its divisors is an integer number (11365062705).

Almost surely, 2^22730125409 is an apocalyptic number.

It is an amenable number.

22730125409 is a deficient number, since it is larger than the sum of its proper divisors (1).

22730125409 is an equidigital number, since it uses as much as digits as its factorization.

22730125409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 22730125409 in words is "twenty-two billion, seven hundred thirty million, one hundred twenty-five thousand, four hundred nine".