25587442 has 8 divisors (see below), whose sum is σ = 38534832. Its totient is φ = 12742500.

The previous prime is 25587421. The next prime is 25587469. The reversal of 25587442 is 24478552.

It is a happy number.

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

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, 24984 + ... + 25987.

It is an arithmetic number, because the mean of its divisors is an integer number (4816854).

Almost surely, 2^25587442 is an apocalyptic number.

25587442 is a deficient number, since it is larger than the sum of its proper divisors (12947390).

25587442 is a wasteful number, since it uses less digits than its factorization.

25587442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51224.

The product of its digits is 89600, while the sum is 37.

The square root of 25587442 is about 5058.4031077011. The cubic root of 25587442 is about 294.6743202719.

It can be divided in two parts, 2558 and 7442, that added together give a 4-th power (10000 = 10⁴).

The spelling of 25587442 in words is "twenty-five million, five hundred eighty-seven thousand, four hundred forty-two".