25216113 has 16 divisors (see below), whose sum is σ = 37377536. Its totient is φ = 15016320.

The previous prime is 25216091. The next prime is 25216127. The reversal of 25216113 is 31161252.

It is not a de Polignac number, because 25216113 - 2⁹ = 25215601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25216113.

It is not an unprimeable number, because it can be changed into a prime (25216183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9220 + ... + 11637.

It is an arithmetic number, because the mean of its divisors is an integer number (2336096).

Almost surely, 2^25216113 is an apocalyptic number.

It is an amenable number.

25216113 is a deficient number, since it is larger than the sum of its proper divisors (12161423).

25216113 is a wasteful number, since it uses less digits than its factorization.

25216113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20904.

The product of its digits is 360, while the sum is 21.

The square root of 25216113 is about 5021.5647959575. The cubic root of 25216113 is about 293.2419152393.

Adding to 25216113 its reverse (31161252), we get a palindrome (56377365).

The spelling of 25216113 in words is "twenty-five million, two hundred sixteen thousand, one hundred thirteen".