25241831 has 2 divisors, whose sum is σ = 25241832. Its totient is φ = 25241830.

The previous prime is 25241813. The next prime is 25241857. The reversal of 25241831 is 13814252.

Together with previous prime (25241813) it forms an Ormiston pair, because they use the same digits, order apart.

It is an a-pointer prime, because the next prime (25241857) can be obtained adding 25241831 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25241831 - 2⁶ = 25241767 is a prime.

It is a super-2 number, since 2×25241831² = 1274300064465122, which contains 22 as substring.

It is a Sophie Germain prime.

It is equal to p_1580039 and since 25241831 and 1580039 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25241831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25241131) 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, 12620915 + 12620916.

It is an arithmetic number, because the mean of its divisors is an integer number (12620916).

Almost surely, 2^25241831 is an apocalyptic number.

25241831 is a deficient number, since it is larger than the sum of its proper divisors (1).

25241831 is an equidigital number, since it uses as much as digits as its factorization.

25241831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 26.

The square root of 25241831 is about 5024.1248989252. The cubic root of 25241831 is about 293.3415741773.

The spelling of 25241831 in words is "twenty-five million, two hundred forty-one thousand, eight hundred thirty-one".