25049109 has 8 divisors (see below), whose sum is σ = 35363520. Its totient is φ = 15717056.

The previous prime is 25049107. The next prime is 25049113. The reversal of 25049109 is 90194052.

It is a happy number.

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 25049109 - 2¹ = 25049107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25049107) 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, 245529 + ... + 245630.

It is an arithmetic number, because the mean of its divisors is an integer number (4420440).

Almost surely, 2^25049109 is an apocalyptic number.

It is an amenable number.

25049109 is a deficient number, since it is larger than the sum of its proper divisors (10314411).

25049109 is a wasteful number, since it uses less digits than its factorization.

25049109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491179.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 25049109 is about 5004.9084906719. The cubic root of 25049109 is about 292.5931093748.

The spelling of 25049109 in words is "twenty-five million, forty-nine thousand, one hundred nine".