25506113 has 16 divisors (see below), whose sum is σ = 27825600. Its totient is φ = 23302080.

The previous prime is 25506079. The next prime is 25506119. The reversal of 25506113 is 31160552.

It is a cyclic number.

It is not a de Polignac number, because 25506113 - 2⁶ = 25506049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25506119) 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, 68195 + ... + 68567.

It is an arithmetic number, because the mean of its divisors is an integer number (1739100).

Almost surely, 2^25506113 is an apocalyptic number.

It is an amenable number.

25506113 is a deficient number, since it is larger than the sum of its proper divisors (2319487).

25506113 is a wasteful number, since it uses less digits than its factorization.

25506113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 25506113 is about 5050.3577101033. The cubic root of 25506113 is about 294.3617840933.

Adding to 25506113 its reverse (31160552), we get a palindrome (56666665).

The spelling of 25506113 in words is "twenty-five million, five hundred six thousand, one hundred thirteen".