25457233 has 2 divisors, whose sum is σ = 25457234. Its totient is φ = 25457232.

The previous prime is 25457213. The next prime is 25457281. The reversal of 25457233 is 33275452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13010449 + 12446784 = 3607^2 + 3528^2 .

It is a cyclic number.

It is not a de Polignac number, because 25457233 - 2⁹ = 25456721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25457195 and 25457204.

It is not a weakly prime, because it can be changed into another prime (25457213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12728616 + 12728617.

It is an arithmetic number, because the mean of its divisors is an integer number (12728617).

Almost surely, 2^25457233 is an apocalyptic number.

It is an amenable number.

25457233 is a deficient number, since it is larger than the sum of its proper divisors (1).

25457233 is an equidigital number, since it uses as much as digits as its factorization.

25457233 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 25457233 is about 5045.5161282073. The cubic root of 25457233 is about 294.1736252111.

The spelling of 25457233 in words is "twenty-five million, four hundred fifty-seven thousand, two hundred thirty-three".