25870479 has 8 divisors (see below), whose sum is σ = 34597680. Its totient is φ = 17195136.

The previous prime is 25870463. The next prime is 25870487. The reversal of 25870479 is 97407852.

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

It is not a de Polignac number, because 25870479 - 2⁴ = 25870463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25870479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25870409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11784 + ... + 13805.

It is an arithmetic number, because the mean of its divisors is an integer number (4324710).

Almost surely, 2^25870479 is an apocalyptic number.

25870479 is a deficient number, since it is larger than the sum of its proper divisors (8727201).

25870479 is a wasteful number, since it uses less digits than its factorization.

25870479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25929.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 25870479 is about 5086.3030778749. The cubic root of 25870479 is about 295.7568576417.

The spelling of 25870479 in words is "twenty-five million, eight hundred seventy thousand, four hundred seventy-nine".