25530833 has 2 divisors, whose sum is σ = 25530834. Its totient is φ = 25530832.

The previous prime is 25530829. The next prime is 25530847. The reversal of 25530833 is 33803552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25230529 + 300304 = 5023^2 + 548^2 .

It is a cyclic number.

It is not a de Polignac number, because 25530833 - 2² = 25530829 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25530796 and 25530805.

It is not a weakly prime, because it can be changed into another prime (25530803) 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 as a sum of consecutive naturals, namely, 12765416 + 12765417.

It is an arithmetic number, because the mean of its divisors is an integer number (12765417).

Almost surely, 2^25530833 is an apocalyptic number.

It is an amenable number.

25530833 is a deficient number, since it is larger than the sum of its proper divisors (1).

25530833 is an equidigital number, since it uses as much as digits as its factorization.

25530833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 25530833 is about 5052.8044688074. The cubic root of 25530833 is about 294.4568498498.

The spelling of 25530833 in words is "twenty-five million, five hundred thirty thousand, eight hundred thirty-three".