25766231 has 2 divisors, whose sum is σ = 25766232. Its totient is φ = 25766230.

The previous prime is 25766219. The next prime is 25766243. The reversal of 25766231 is 13266752.

It is a balanced prime because it is at equal distance from previous prime (25766219) and next prime (25766243).

It is a cyclic number.

It is not a de Polignac number, because 25766231 - 2¹⁴ = 25749847 is a prime.

It is a super-2 number, since 2×25766231² = 1327797319890722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25766201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12883115 + 12883116.

It is an arithmetic number, because the mean of its divisors is an integer number (12883116).

Almost surely, 2^25766231 is an apocalyptic number.

25766231 is a deficient number, since it is larger than the sum of its proper divisors (1).

25766231 is an equidigital number, since it uses as much as digits as its factorization.

25766231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15120, while the sum is 32.

The square root of 25766231 is about 5076.0448185571. The cubic root of 25766231 is about 295.3590610179.

The spelling of 25766231 in words is "twenty-five million, seven hundred sixty-six thousand, two hundred thirty-one".