25223489 has 2 divisors, whose sum is σ = 25223490. Its totient is φ = 25223488.

The previous prime is 25223483. The next prime is 25223501. The reversal of 25223489 is 98432252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15737089 + 9486400 = 3967^2 + 3080^2 .

It is a cyclic number.

It is not a de Polignac number, because 25223489 - 2¹² = 25219393 is a prime.

It is not a weakly prime, because it can be changed into another prime (25223483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12611744 + 12611745.

It is an arithmetic number, because the mean of its divisors is an integer number (12611745).

Almost surely, 2^25223489 is an apocalyptic number.

It is an amenable number.

25223489 is a deficient number, since it is larger than the sum of its proper divisors (1).

25223489 is an equidigital number, since it uses as much as digits as its factorization.

25223489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 35.

The square root of 25223489 is about 5022.2991746809. The cubic root of 25223489 is about 293.2705046510.

The spelling of 25223489 in words is "twenty-five million, two hundred twenty-three thousand, four hundred eighty-nine".