25313117 has 4 divisors (see below), whose sum is σ = 25377276. Its totient is φ = 25248960.

The previous prime is 25313107. The next prime is 25313129. The reversal of 25313117 is 71131352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18028516 + 7284601 = 4246^2 + 2699^2 .

It is a cyclic number.

It is not a de Polignac number, because 25313117 - 2¹⁶ = 25247581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25313092 and 25313101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25313107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31484 + ... + 32277.

It is an arithmetic number, because the mean of its divisors is an integer number (6344319).

Almost surely, 2^25313117 is an apocalyptic number.

It is an amenable number.

25313117 is a deficient number, since it is larger than the sum of its proper divisors (64159).

25313117 is an equidigital number, since it uses as much as digits as its factorization.

25313117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64158.

The product of its digits is 630, while the sum is 23.

The square root of 25313117 is about 5031.2142669539. The cubic root of 25313117 is about 293.6174587210.

Adding to 25313117 its reverse (71131352), we get a palindrome (96444469).

The spelling of 25313117 in words is "twenty-five million, three hundred thirteen thousand, one hundred seventeen".