25126226243 has 2 divisors, whose sum is σ = 25126226244. Its totient is φ = 25126226242.

The previous prime is 25126226171. The next prime is 25126226269. The reversal of 25126226243 is 34262262152.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25126226243 - 2¹⁶ = 25126160707 is a prime.

It is not a weakly prime, because it can be changed into another prime (25126226443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12563113121 + 12563113122.

It is an arithmetic number, because the mean of its divisors is an integer number (12563113122).

Almost surely, 2^25126226243 is an apocalyptic number.

25126226243 is a deficient number, since it is larger than the sum of its proper divisors (1).

25126226243 is an equidigital number, since it uses as much as digits as its factorization.

25126226243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 35.

Adding to 25126226243 its reverse (34262262152), we get a palindrome (59388488395).

The spelling of 25126226243 in words is "twenty-five billion, one hundred twenty-six million, two hundred twenty-six thousand, two hundred forty-three".