25545263 has 2 divisors, whose sum is σ = 25545264. Its totient is φ = 25545262.

The previous prime is 25545251. The next prime is 25545283. The reversal of 25545263 is 36254552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25545263 - 2¹⁸ = 25283119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25545283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12772631 + 12772632.

It is an arithmetic number, because the mean of its divisors is an integer number (12772632).

Almost surely, 2^25545263 is an apocalyptic number.

25545263 is a deficient number, since it is larger than the sum of its proper divisors (1).

25545263 is an equidigital number, since it uses as much as digits as its factorization.

25545263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 32.

The square root of 25545263 is about 5054.2321869894. The cubic root of 25545263 is about 294.5123149690.

The spelling of 25545263 in words is "twenty-five million, five hundred forty-five thousand, two hundred sixty-three".