25261349 has 8 divisors (see below), whose sum is σ = 26188920. Its totient is φ = 24337600.

The previous prime is 25261333. The next prime is 25261361. The reversal of 25261349 is 94316252.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3265249 + 21996100 = 1807^2 + 4690^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25261349 - 2⁴ = 25261333 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 (25261319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23279 + ... + 24339.

It is an arithmetic number, because the mean of its divisors is an integer number (3273615).

Almost surely, 2^25261349 is an apocalyptic number.

25261349 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

25261349 is a deficient number, since it is larger than the sum of its proper divisors (927571).

25261349 is a wasteful number, since it uses less digits than its factorization.

25261349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1911.

The product of its digits is 12960, while the sum is 32.

The square root of 25261349 is about 5026.0669514044. The cubic root of 25261349 is about 293.4171625365.

The spelling of 25261349 in words is "twenty-five million, two hundred sixty-one thousand, three hundred forty-nine".