25527565 has 8 divisors (see below), whose sum is σ = 35009280. Its totient is φ = 17504592.

The previous prime is 25527547. The next prime is 25527571. The reversal of 25527565 is 56572552.

It is a happy number.

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

It is not a de Polignac number, because 25527565 - 2¹⁵ = 25494797 is a prime.

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, 364645 + ... + 364714.

It is an arithmetic number, because the mean of its divisors is an integer number (4376160).

Almost surely, 2^25527565 is an apocalyptic number.

It is an amenable number.

25527565 is a deficient number, since it is larger than the sum of its proper divisors (9481715).

25527565 is an equidigital number, since it uses as much as digits as its factorization.

25527565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729371.

The product of its digits is 105000, while the sum is 37.

The square root of 25527565 is about 5052.4810736904. The cubic root of 25527565 is about 294.4442856163. Note that the first 3 decimals are identical.

The spelling of 25527565 in words is "twenty-five million, five hundred twenty-seven thousand, five hundred sixty-five".