25869533 has 2 divisors, whose sum is σ = 25869534. Its totient is φ = 25869532.

The previous prime is 25869517. The next prime is 25869559. The reversal of 25869533 is 33596852.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20403289 + 5466244 = 4517^2 + 2338^2 .

It is a cyclic number.

It is not a de Polignac number, because 25869533 - 2⁴ = 25869517 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25862533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12934766 + 12934767.

It is an arithmetic number, because the mean of its divisors is an integer number (12934767).

Almost surely, 2^25869533 is an apocalyptic number.

It is an amenable number.

25869533 is a deficient number, since it is larger than the sum of its proper divisors (1).

25869533 is an equidigital number, since it uses as much as digits as its factorization.

25869533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 41.

The square root of 25869533 is about 5086.2100821732. The cubic root of 25869533 is about 295.7532526395.

The spelling of 25869533 in words is "twenty-five million, eight hundred sixty-nine thousand, five hundred thirty-three".