25316 has 6 divisors (see below), whose sum is σ = 44310. Its totient is φ = 12656.

The previous prime is 25309. The next prime is 25321. The reversal of 25316 is 61352.

25316 = 3⁴ + 4⁴ + ... + 10⁴.

It can be written as a sum of positive squares in only one way, i.e., 23716 + 1600 = 154^2 + 40^2 .

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 25294 and 25303.

It is an unprimeable number.

25316 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3161 + ... + 3168.

It is an arithmetic number, because the mean of its divisors is an integer number (7385).

2²⁵³¹⁶ is an apocalyptic number.

It is an amenable number.

25316 is a deficient number, since it is larger than the sum of its proper divisors (18994).

25316 is a wasteful number, since it uses less digits than its factorization.

25316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6333 (or 6331 counting only the distinct ones).

The product of its digits is 180, while the sum is 17.

The square root of 25316 is about 159.1100248256. The cubic root of 25316 is about 29.3628605340.

Adding to 25316 its reverse (61352), we get a palindrome (86668).

The spelling of 25316 in words is "twenty-five thousand, three hundred sixteen".