25242585 has 16 divisors (see below), whose sum is σ = 40992576. Its totient is φ = 13261248.

The previous prime is 25242533. The next prime is 25242589. The reversal of 25242585 is 58524252.

It is a happy number.

It is not a de Polignac number, because 25242585 - 2⁹ = 25242073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25242589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11554 + ... + 13563.

It is an arithmetic number, because the mean of its divisors is an integer number (2562036).

Almost surely, 2^25242585 is an apocalyptic number.

It is an amenable number.

25242585 is a deficient number, since it is larger than the sum of its proper divisors (15749991).

25242585 is a wasteful number, since it uses less digits than its factorization.

25242585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25192.

The product of its digits is 32000, while the sum is 33.

The square root of 25242585 is about 5024.1999363083. The cubic root of 25242585 is about 293.3444949552.

The spelling of 25242585 in words is "twenty-five million, two hundred forty-two thousand, five hundred eighty-five".