25313109 has 8 divisors (see below), whose sum is σ = 34304352. Its totient is φ = 16598640.

The previous prime is 25313107. The next prime is 25313129. The reversal of 25313109 is 90131352.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25313109 - 2¹ = 25313107 is a prime.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68979 + ... + 69344.

It is an arithmetic number, because the mean of its divisors is an integer number (4288044).

Almost surely, 2^25313109 is an apocalyptic number.

It is an amenable number.

25313109 is a deficient number, since it is larger than the sum of its proper divisors (8991243).

25313109 is a wasteful number, since it uses less digits than its factorization.

25313109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138387.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 25313109 is about 5031.2134719171. The cubic root of 25313109 is about 293.6174277892.

The spelling of 25313109 in words is "twenty-five million, three hundred thirteen thousand, one hundred nine".