25206011 has 2 divisors, whose sum is σ = 25206012. Its totient is φ = 25206010.

The previous prime is 25205969. The next prime is 25206023. The reversal of 25206011 is 11060252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25206011 - 2¹⁴ = 25189627 is a prime.

It is a super-3 number, since 3×25206011³ (a number of 23 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (25206031) 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, 12603005 + 12603006.

It is an arithmetic number, because the mean of its divisors is an integer number (12603006).

Almost surely, 2^25206011 is an apocalyptic number.

25206011 is a deficient number, since it is larger than the sum of its proper divisors (1).

25206011 is an equidigital number, since it uses as much as digits as its factorization.

25206011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 25206011 is about 5020.5588334368. The cubic root of 25206011 is about 293.2027507905.

Adding to 25206011 its reverse (11060252), we get a palindrome (36266263).

The spelling of 25206011 in words is "twenty-five million, two hundred six thousand, eleven".