25212679 has 2 divisors, whose sum is σ = 25212680. Its totient is φ = 25212678.

The previous prime is 25212643. The next prime is 25212689. The reversal of 25212679 is 97621252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25212679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25212619) 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, 12606339 + 12606340.

It is an arithmetic number, because the mean of its divisors is an integer number (12606340).

Almost surely, 2^25212679 is an apocalyptic number.

25212679 is a deficient number, since it is larger than the sum of its proper divisors (1).

25212679 is an equidigital number, since it uses as much as digits as its factorization.

25212679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 25212679 is about 5021.2228590255. Note that the first 3 decimals coincide. The cubic root of 25212679 is about 293.2286031367.

The spelling of 25212679 in words is "twenty-five million, two hundred twelve thousand, six hundred seventy-nine".