25803247 has 2 divisors, whose sum is σ = 25803248. Its totient is φ = 25803246.

The previous prime is 25803233. The next prime is 25803269. The reversal of 25803247 is 74230852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25803247 - 2¹¹ = 25801199 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25803847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12901623 + 12901624.

It is an arithmetic number, because the mean of its divisors is an integer number (12901624).

Almost surely, 2^25803247 is an apocalyptic number.

25803247 is a deficient number, since it is larger than the sum of its proper divisors (1).

25803247 is an equidigital number, since it uses as much as digits as its factorization.

25803247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 25803247 is about 5079.6896558747. The cubic root of 25803247 is about 295.5004318389.

The spelling of 25803247 in words is "twenty-five million, eight hundred three thousand, two hundred forty-seven".