25227491 has 2 divisors, whose sum is σ = 25227492. Its totient is φ = 25227490.

The previous prime is 25227463. The next prime is 25227547. The reversal of 25227491 is 19472252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25227491 - 2⁶ = 25227427 is a prime.

It is a Chen prime.

It is equal to p_1579235 and since 25227491 and 1579235 have the same sum of digits, it is a Honaker prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (25220491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12613745 + 12613746.

It is an arithmetic number, because the mean of its divisors is an integer number (12613746).

Almost surely, 2^25227491 is an apocalyptic number.

25227491 is a deficient number, since it is larger than the sum of its proper divisors (1).

25227491 is an equidigital number, since it uses as much as digits as its factorization.

25227491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 25227491 is about 5022.6975819772. The cubic root of 25227491 is about 293.2860140900.

The spelling of 25227491 in words is "twenty-five million, two hundred twenty-seven thousand, four hundred ninety-one".