25271611 has 2 divisors, whose sum is σ = 25271612. Its totient is φ = 25271610.

The previous prime is 25271599. The next prime is 25271627. The reversal of 25271611 is 11617252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25271611 - 2⁵ = 25271579 is a prime.

It is not a weakly prime, because it can be changed into another prime (25271671) 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, 12635805 + 12635806.

It is an arithmetic number, because the mean of its divisors is an integer number (12635806).

Almost surely, 2^25271611 is an apocalyptic number.

25271611 is a deficient number, since it is larger than the sum of its proper divisors (1).

25271611 is an equidigital number, since it uses as much as digits as its factorization.

25271611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 25.

The square root of 25271611 is about 5027.0877255127. The cubic root of 25271611 is about 293.4568890938.

Adding to 25271611 its reverse (11617252), we get a palindrome (36888863).

The spelling of 25271611 in words is "twenty-five million, two hundred seventy-one thousand, six hundred eleven".