25420333 has 2 divisors, whose sum is σ = 25420334. Its totient is φ = 25420332.

The previous prime is 25420331. The next prime is 25420361. The reversal of 25420333 is 33302452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19954089 + 5466244 = 4467^2 + 2338^2 .

It is a cyclic number.

It is not a de Polignac number, because 25420333 - 2¹ = 25420331 is a prime.

Together with 25420331, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25420331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12710166 + 12710167.

It is an arithmetic number, because the mean of its divisors is an integer number (12710167).

Almost surely, 2^25420333 is an apocalyptic number.

It is an amenable number.

25420333 is a deficient number, since it is larger than the sum of its proper divisors (1).

25420333 is an equidigital number, since it uses as much as digits as its factorization.

25420333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 25420333 is about 5041.8580900299. The cubic root of 25420333 is about 294.0314225905.

Adding to 25420333 its reverse (33302452), we get a palindrome (58722785).

The spelling of 25420333 in words is "twenty-five million, four hundred twenty thousand, three hundred thirty-three".