25253243 has 2 divisors, whose sum is σ = 25253244. Its totient is φ = 25253242.

The previous prime is 25253237. The next prime is 25253273. The reversal of 25253243 is 34235252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25253243 - 2¹⁶ = 25187707 is a prime.

It is not a weakly prime, because it can be changed into another prime (25253213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12626621 + 12626622.

It is an arithmetic number, because the mean of its divisors is an integer number (12626622).

Almost surely, 2^25253243 is an apocalyptic number.

25253243 is a deficient number, since it is larger than the sum of its proper divisors (1).

25253243 is an equidigital number, since it uses as much as digits as its factorization.

25253243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 26.

The square root of 25253243 is about 5025.2604907607. The cubic root of 25253243 is about 293.3857747437.

Adding to 25253243 its reverse (34235252), we get a palindrome (59488495).

Subtracting 25253243 from its reverse (34235252), we obtain a square (8982009 = 2997²).

The spelling of 25253243 in words is "twenty-five million, two hundred fifty-three thousand, two hundred forty-three".