25022223789217 has 2 divisors, whose sum is σ = 25022223789218. Its totient is φ = 25022223789216.

The previous prime is 25022223789179. The next prime is 25022223789239. The reversal of 25022223789217 is 71298732222052.

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., 23532239808016 + 1489983981201 = 4851004^2 + 1220649^2 .

It is a cyclic number.

It is not a de Polignac number, because 25022223789217 - 2²⁷ = 25022089571489 is a prime.

It is a super-2 number, since 2×25022223789217² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25022223789287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12511111894608 + 12511111894609.

It is an arithmetic number, because the mean of its divisors is an integer number (12511111894609).

Almost surely, 2^{25022223789217} is an apocalyptic number.

It is an amenable number.

25022223789217 is a deficient number, since it is larger than the sum of its proper divisors (1).

25022223789217 is an equidigital number, since it uses as much as digits as its factorization.

25022223789217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 25022223789217 in words is "twenty-five trillion, twenty-two billion, two hundred twenty-three million, seven hundred eighty-nine thousand, two hundred seventeen".