25997353 has 4 divisors (see below), whose sum is σ = 26020548. Its totient is φ = 25974160.

The previous prime is 25997351. The next prime is 25997357. The reversal of 25997353 is 35379952.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21279769 + 4717584 = 4613^2 + 2172^2 .

It is a cyclic number.

It is not a de Polignac number, because 25997353 - 2¹ = 25997351 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25997351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9826 + ... + 12187.

It is an arithmetic number, because the mean of its divisors is an integer number (6505137).

Almost surely, 2^25997353 is an apocalyptic number.

It is an amenable number.

25997353 is a deficient number, since it is larger than the sum of its proper divisors (23195).

25997353 is a wasteful number, since it uses less digits than its factorization.

25997353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23194.

The product of its digits is 255150, while the sum is 43.

The square root of 25997353 is about 5098.7599472813. The cubic root of 25997353 is about 296.2395530033.

The spelling of 25997353 in words is "twenty-five million, nine hundred ninety-seven thousand, three hundred fifty-three".