25271233 has 4 divisors (see below), whose sum is σ = 27215188. Its totient is φ = 23327280.

The previous prime is 25271221. The next prime is 25271237. The reversal of 25271233 is 33217252.

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 7907344 + 17363889 = 2812^2 + 4167^2 .

It is a cyclic number.

It is not a de Polignac number, because 25271233 - 2¹³ = 25263041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25271198 and 25271207.

It is not an unprimeable number, because it can be changed into a prime (25271237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 971958 + ... + 971983.

It is an arithmetic number, because the mean of its divisors is an integer number (6803797).

Almost surely, 2^25271233 is an apocalyptic number.

It is an amenable number.

25271233 is a deficient number, since it is larger than the sum of its proper divisors (1943955).

25271233 is a wasteful number, since it uses less digits than its factorization.

25271233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943954.

The product of its digits is 2520, while the sum is 25.

The square root of 25271233 is about 5027.0501290518. The cubic root of 25271233 is about 293.4554259599.

Adding to 25271233 its reverse (33217252), we get a palindrome (58488485).

The spelling of 25271233 in words is "twenty-five million, two hundred seventy-one thousand, two hundred thirty-three".