25753243 has 2 divisors, whose sum is σ = 25753244. Its totient is φ = 25753242.

The previous prime is 25753213. The next prime is 25753271. The reversal of 25753243 is 34235752.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25753243 - 2⁹ = 25752731 is a prime.

It is a super-3 number, since 3×25753243³ (a number of 23 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (25753213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12876621 + 12876622.

It is an arithmetic number, because the mean of its divisors is an integer number (12876622).

Almost surely, 2^25753243 is an apocalyptic number.

25753243 is a deficient number, since it is larger than the sum of its proper divisors (1).

25753243 is an equidigital number, since it uses as much as digits as its factorization.

25753243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25200, while the sum is 31.

The square root of 25753243 is about 5074.7653147707. The cubic root of 25753243 is about 295.3094254021.

Adding to 25753243 its reverse (34235752), we get a palindrome (59988995).

The spelling of 25753243 in words is "twenty-five million, seven hundred fifty-three thousand, two hundred forty-three".