25943453 has 2 divisors, whose sum is σ = 25943454. Its totient is φ = 25943452.

The previous prime is 25943441. The next prime is 25943473. The reversal of 25943453 is 35434952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16345849 + 9597604 = 4043^2 + 3098^2 .

It is a cyclic number.

It is not a de Polignac number, because 25943453 - 2¹² = 25939357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25943413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12971726 + 12971727.

It is an arithmetic number, because the mean of its divisors is an integer number (12971727).

Almost surely, 2^25943453 is an apocalyptic number.

It is an amenable number.

25943453 is a deficient number, since it is larger than the sum of its proper divisors (1).

25943453 is an equidigital number, since it uses as much as digits as its factorization.

25943453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 35.

The square root of 25943453 is about 5093.4716058892. The cubic root of 25943453 is about 296.0346813819.

The spelling of 25943453 in words is "twenty-five million, nine hundred forty-three thousand, four hundred fifty-three".