25225643 has 2 divisors, whose sum is σ = 25225644. Its totient is φ = 25225642.

The previous prime is 25225633. The next prime is 25225657. The reversal of 25225643 is 34652252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25225643 - 2¹⁴ = 25209259 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (25225633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12612821 + 12612822.

It is an arithmetic number, because the mean of its divisors is an integer number (12612822).

Almost surely, 2^25225643 is an apocalyptic number.

25225643 is a deficient number, since it is larger than the sum of its proper divisors (1).

25225643 is an equidigital number, since it uses as much as digits as its factorization.

25225643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14400, while the sum is 29.

The square root of 25225643 is about 5022.5136137197. The cubic root of 25225643 is about 293.2788525139.

Adding to 25225643 its reverse (34652252), we get a palindrome (59877895).

The spelling of 25225643 in words is "twenty-five million, two hundred twenty-five thousand, six hundred forty-three".