25057265 has 8 divisors (see below), whose sum is σ = 30165480. Its totient is φ = 19981312.

The previous prime is 25057259. The next prime is 25057289. The reversal of 25057265 is 56275052.

It can be written as a sum of positive squares in 4 ways, for example, as 1515361 + 23541904 = 1231^2 + 4852^2 .

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 25057265 - 2²⁰ = 24008689 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6320 + ... + 9489.

It is an arithmetic number, because the mean of its divisors is an integer number (3770685).

Almost surely, 2^25057265 is an apocalyptic number.

It is an amenable number.

25057265 is a deficient number, since it is larger than the sum of its proper divisors (5108215).

25057265 is a wasteful number, since it uses less digits than its factorization.

25057265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16131.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 25057265 is about 5005.7232244702. The cubic root of 25057265 is about 292.6248620736.

The spelling of 25057265 in words is "twenty-five million, fifty-seven thousand, two hundred sixty-five".