25220323229 has 2 divisors, whose sum is σ = 25220323230. Its totient is φ = 25220323228.

The previous prime is 25220323217. The next prime is 25220323237. The reversal of 25220323229 is 92232302252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19432917604 + 5787405625 = 139402^2 + 76075^2 .

It is a cyclic number.

It is not a de Polignac number, because 25220323229 - 2¹⁶ = 25220257693 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25220323195 and 25220323204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25220323529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12610161614 + 12610161615.

It is an arithmetic number, because the mean of its divisors is an integer number (12610161615).

Almost surely, 2^25220323229 is an apocalyptic number.

It is an amenable number.

25220323229 is a deficient number, since it is larger than the sum of its proper divisors (1).

25220323229 is an equidigital number, since it uses as much as digits as its factorization.

25220323229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 25220323229 in words is "twenty-five billion, two hundred twenty million, three hundred twenty-three thousand, two hundred twenty-nine".