25397233 has 4 divisors (see below), whose sum is σ = 25506468. Its totient is φ = 25288000.

The previous prime is 25397231. The next prime is 25397257. The reversal of 25397233 is 33279352.

It is a happy number.

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 7656289 + 17740944 = 2767^2 + 4212^2 .

It is a cyclic number.

It is not a de Polignac number, because 25397233 - 2¹ = 25397231 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25397231) 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 in 3 ways as a sum of consecutive naturals, for example, 54268 + ... + 54733.

It is an arithmetic number, because the mean of its divisors is an integer number (6376617).

Almost surely, 2^25397233 is an apocalyptic number.

It is an amenable number.

25397233 is a deficient number, since it is larger than the sum of its proper divisors (109235).

25397233 is a wasteful number, since it uses less digits than its factorization.

25397233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109234.

The product of its digits is 34020, while the sum is 34.

The square root of 25397233 is about 5039.5667472512. The cubic root of 25397233 is about 293.9423313857.

The spelling of 25397233 in words is "twenty-five million, three hundred ninety-seven thousand, two hundred thirty-three".