25585242 has 8 divisors (see below), whose sum is σ = 51170496. Its totient is φ = 8528412.

The previous prime is 25585211. The next prime is 25585247. The reversal of 25585242 is 24258552.

It is a happy number.

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

25585242 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (25585247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2132098 + ... + 2132109.

It is an arithmetic number, because the mean of its divisors is an integer number (6396312).

Almost surely, 2^25585242 is an apocalyptic number.

25585242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25585242 is a wasteful number, since it uses less digits than its factorization.

25585242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4264212.

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

The square root of 25585242 is about 5058.1856430938. The cubic root of 25585242 is about 294.6658746956.

The spelling of 25585242 in words is "twenty-five million, five hundred eighty-five thousand, two hundred forty-two".