25004442 has 8 divisors (see below), whose sum is σ = 50008896. Its totient is φ = 8334812.

The previous prime is 25004431. The next prime is 25004459. The reversal of 25004442 is 24440052.

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

25004442 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2083698 + ... + 2083709.

It is an arithmetic number, because the mean of its divisors is an integer number (6251112).

Almost surely, 2^25004442 is an apocalyptic number.

25004442 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.

25004442 is a wasteful number, since it uses less digits than its factorization.

25004442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4167412.

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 25004442 is about 5000.4441802704. Note that the first 3 decimals coincide. The cubic root of 25004442 is about 292.4190907781.

Adding to 25004442 its reverse (24440052), we get a palindrome (49444494).

The spelling of 25004442 in words is "twenty-five million, four thousand, four hundred forty-two".