25089145 has 8 divisors (see below), whose sum is σ = 30920904. Its totient is φ = 19528704.

The previous prime is 25089143. The next prime is 25089149. The reversal of 25089145 is 54198052.

It can be written as a sum of positive squares in 4 ways, for example, as 4149369 + 20939776 = 2037^2 + 4576^2 .

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 25089145 - 2¹ = 25089143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25089145.

It is not an unprimeable number, because it can be changed into a prime (25089143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67624 + ... + 67993.

It is an arithmetic number, because the mean of its divisors is an integer number (3865113).

Almost surely, 2^25089145 is an apocalyptic number.

It is an amenable number.

25089145 is a deficient number, since it is larger than the sum of its proper divisors (5831759).

25089145 is a wasteful number, since it uses less digits than its factorization.

25089145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135659.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 25089145 is about 5008.9065673059. The cubic root of 25089145 is about 292.7489102896.

The spelling of 25089145 in words is "twenty-five million, eighty-nine thousand, one hundred forty-five".