25281079 has 2 divisors, whose sum is σ = 25281080. Its totient is φ = 25281078.

The previous prime is 25281037. The next prime is 25281097. The reversal of 25281079 is 97018252.

Together with next prime (25281097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25281079 - 2¹⁷ = 25150007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25281029) 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, 12640539 + 12640540.

It is an arithmetic number, because the mean of its divisors is an integer number (12640540).

Almost surely, 2^25281079 is an apocalyptic number.

25281079 is a deficient number, since it is larger than the sum of its proper divisors (1).

25281079 is an equidigital number, since it uses as much as digits as its factorization.

25281079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 25281079 is about 5028.0293356344. The cubic root of 25281079 is about 293.4935323575.

The spelling of 25281079 in words is "twenty-five million, two hundred eighty-one thousand, seventy-nine".