25713211 has 2 divisors, whose sum is σ = 25713212. Its totient is φ = 25713210.

The previous prime is 25713161. The next prime is 25713217. The reversal of 25713211 is 11231752.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25713211 - 2¹¹ = 25711163 is a prime.

It is a super-2 number, since 2×25713211² = 1322338439861042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25713217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12856605 + 12856606.

It is an arithmetic number, because the mean of its divisors is an integer number (12856606).

Almost surely, 2^25713211 is an apocalyptic number.

25713211 is a deficient number, since it is larger than the sum of its proper divisors (1).

25713211 is an equidigital number, since it uses as much as digits as its factorization.

25713211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 420, while the sum is 22.

The square root of 25713211 is about 5070.8195590062. The cubic root of 25713211 is about 295.1563319623.

Adding to 25713211 its reverse (11231752), we get a palindrome (36944963).

The spelling of 25713211 in words is "twenty-five million, seven hundred thirteen thousand, two hundred eleven".