25205711 has 2 divisors, whose sum is σ = 25205712. Its totient is φ = 25205710.

The previous prime is 25205683. The next prime is 25205717. The reversal of 25205711 is 11750252.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25205711 - 2¹⁰ = 25204687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25205717) 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, 12602855 + 12602856.

It is an arithmetic number, because the mean of its divisors is an integer number (12602856).

Almost surely, 2^25205711 is an apocalyptic number.

25205711 is a deficient number, since it is larger than the sum of its proper divisors (1).

25205711 is an equidigital number, since it uses as much as digits as its factorization.

25205711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 25205711 is about 5020.5289561958. The cubic root of 25205711 is about 293.2015875604.

Adding to 25205711 its reverse (11750252), we get a palindrome (36955963).

The spelling of 25205711 in words is "twenty-five million, two hundred five thousand, seven hundred eleven".