25616011 has 2 divisors, whose sum is σ = 25616012. Its totient is φ = 25616010.

The previous prime is 25615999. The next prime is 25616057. The reversal of 25616011 is 11061652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25616011 - 2⁵ = 25615979 is a prime.

It is not a weakly prime, because it can be changed into another prime (25616611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12808005 + 12808006.

It is an arithmetic number, because the mean of its divisors is an integer number (12808006).

Almost surely, 2^25616011 is an apocalyptic number.

25616011 is a deficient number, since it is larger than the sum of its proper divisors (1).

25616011 is an equidigital number, since it uses as much as digits as its factorization.

25616011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 25616011 is about 5061.2262348170. The cubic root of 25616011 is about 294.7839498241.

Adding to 25616011 its reverse (11061652), we get a palindrome (36677663).

The spelling of 25616011 in words is "twenty-five million, six hundred sixteen thousand, eleven".