22525011409 has 2 divisors, whose sum is σ = 22525011410. Its totient is φ = 22525011408.

The previous prime is 22525011403. The next prime is 22525011469. The reversal of 22525011409 is 90411052522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21033120784 + 1491890625 = 145028^2 + 38625^2 .

It is a cyclic number.

It is not a de Polignac number, because 22525011409 - 2²⁷ = 22390793681 is a prime.

It is a super-2 number, since 2×22525011409² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22525011403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11262505704 + 11262505705.

It is an arithmetic number, because the mean of its divisors is an integer number (11262505705).

Almost surely, 2^22525011409 is an apocalyptic number.

It is an amenable number.

22525011409 is a deficient number, since it is larger than the sum of its proper divisors (1).

22525011409 is an equidigital number, since it uses as much as digits as its factorization.

22525011409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

The spelling of 22525011409 in words is "twenty-two billion, five hundred twenty-five million, eleven thousand, four hundred nine".