25249045 has 8 divisors (see below), whose sum is σ = 30430296. Its totient is φ = 20111616.

The previous prime is 25249039. The next prime is 25249061. The reversal of 25249045 is 54094252.

It can be written as a sum of positive squares in 4 ways, for example, as 5827396 + 19421649 = 2414^2 + 4407^2 .

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 25249045 - 2⁹ = 25248533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25248998 and 25249016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9672 + ... + 12001.

It is an arithmetic number, because the mean of its divisors is an integer number (3803787).

Almost surely, 2^25249045 is an apocalyptic number.

It is an amenable number.

25249045 is a deficient number, since it is larger than the sum of its proper divisors (5181251).

25249045 is a wasteful number, since it uses less digits than its factorization.

25249045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21911.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 25249045 is about 5024.8427836102. The cubic root of 25249045 is about 293.3695167429.

The spelling of 25249045 in words is "twenty-five million, two hundred forty-nine thousand, forty-five".