25582715 has 4 divisors (see below), whose sum is σ = 30699264. Its totient is φ = 20466168.

The previous prime is 25582703. The next prime is 25582723. The reversal of 25582715 is 51728552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25582715 - 2¹⁰ = 25581691 is a prime.

It is a Duffinian 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, 2558267 + ... + 2558276.

It is an arithmetic number, because the mean of its divisors is an integer number (7674816).

Almost surely, 2^25582715 is an apocalyptic number.

25582715 is a deficient number, since it is larger than the sum of its proper divisors (5116549).

25582715 is an equidigital number, since it uses as much as digits as its factorization.

25582715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5116548.

The product of its digits is 28000, while the sum is 35.

The square root of 25582715 is about 5057.9358438003. The cubic root of 25582715 is about 294.6561732020.

The spelling of 25582715 in words is "twenty-five million, five hundred eighty-two thousand, seven hundred fifteen".