25412565 has 8 divisors (see below), whose sum is σ = 40660128. Its totient is φ = 13553360.

The previous prime is 25412561. The next prime is 25412609. The reversal of 25412565 is 56521452.

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

It is not a de Polignac number, because 25412565 - 2² = 25412561 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25412561) 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, 847071 + ... + 847100.

It is an arithmetic number, because the mean of its divisors is an integer number (5082516).

Almost surely, 2^25412565 is an apocalyptic number.

It is an amenable number.

25412565 is a deficient number, since it is larger than the sum of its proper divisors (15247563).

25412565 is a wasteful number, since it uses less digits than its factorization.

25412565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694179.

The product of its digits is 12000, while the sum is 30.

The square root of 25412565 is about 5041.0876802531. The cubic root of 25412565 is about 294.0014692879.

The spelling of 25412565 in words is "twenty-five million, four hundred twelve thousand, five hundred sixty-five".