25934213 has 2 divisors, whose sum is σ = 25934214. Its totient is φ = 25934212.

The previous prime is 25934173. The next prime is 25934239. The reversal of 25934213 is 31243952.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25877569 + 56644 = 5087^2 + 238^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25934213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25934413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12967106 + 12967107.

It is an arithmetic number, because the mean of its divisors is an integer number (12967107).

Almost surely, 2^25934213 is an apocalyptic number.

It is an amenable number.

25934213 is a deficient number, since it is larger than the sum of its proper divisors (1).

25934213 is an equidigital number, since it uses as much as digits as its factorization.

25934213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 29.

The square root of 25934213 is about 5092.5644816733. The cubic root of 25934213 is about 295.9995320482. Note that the first 3 decimals are identical.

The spelling of 25934213 in words is "twenty-five million, nine hundred thirty-four thousand, two hundred thirteen".