25216011 has 12 divisors (see below), whose sum is σ = 36616320. Its totient is φ = 16721520.

The previous prime is 25216001. The next prime is 25216019. The reversal of 25216011 is 11061252.

It is not a de Polignac number, because 25216011 - 2⁵ = 25215979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25216019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5616 + ... + 9053.

It is an arithmetic number, because the mean of its divisors is an integer number (3051360).

Almost surely, 2^25216011 is an apocalyptic number.

25216011 is a deficient number, since it is larger than the sum of its proper divisors (11400309).

25216011 is a wasteful number, since it uses less digits than its factorization.

25216011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14866 (or 14863 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 25216011 is about 5021.5546397505. The cubic root of 25216011 is about 293.2415198477.

Adding to 25216011 its reverse (11061252), we get a palindrome (36277263).

The spelling of 25216011 in words is "twenty-five million, two hundred sixteen thousand, eleven".