25374109 has 4 divisors (see below), whose sum is σ = 25790140. Its totient is φ = 24958080.

The previous prime is 25374079. The next prime is 25374113. The reversal of 25374109 is 90147352.

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 4853209 + 20520900 = 2203^2 + 4530^2 .

It is a cyclic number.

It is not a de Polignac number, because 25374109 - 2⁷ = 25373981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25374809) 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 3 ways as a sum of consecutive naturals, for example, 207924 + ... + 208045.

It is an arithmetic number, because the mean of its divisors is an integer number (6447535).

Almost surely, 2^25374109 is an apocalyptic number.

It is an amenable number.

25374109 is a deficient number, since it is larger than the sum of its proper divisors (416031).

25374109 is an equidigital number, since it uses as much as digits as its factorization.

25374109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416030.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 25374109 is about 5037.2719799511. The cubic root of 25374109 is about 293.8530934960.

The spelling of 25374109 in words is "twenty-five million, three hundred seventy-four thousand, one hundred nine".