25489045 has 8 divisors (see below), whose sum is σ = 31006296. Its totient is φ = 20111616.

The previous prime is 25489039. The next prime is 25489049. The reversal of 25489045 is 54098452.

It can be written as a sum of positive squares in 4 ways, for example, as 178084 + 25310961 = 422^2 + 5031^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25489045 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25488995 and 25489013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25489049) 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, 34552 + ... + 35281.

It is an arithmetic number, because the mean of its divisors is an integer number (3875787).

Almost surely, 2^25489045 is an apocalyptic number.

It is an amenable number.

25489045 is a deficient number, since it is larger than the sum of its proper divisors (5517251).

25489045 is an equidigital number, since it uses as much as digits as its factorization.

25489045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69911.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 25489045 is about 5048.6676460231. The cubic root of 25489045 is about 294.2961097976.

The spelling of 25489045 in words is "twenty-five million, four hundred eighty-nine thousand, forty-five".