25870927 has 4 divisors (see below), whose sum is σ = 25888456. Its totient is φ = 25853400.

The previous prime is 25870891. The next prime is 25870937. The reversal of 25870927 is 72907852.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25870927 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25870927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25870937) 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, 6324 + ... + 9577.

It is an arithmetic number, because the mean of its divisors is an integer number (6472114).

Almost surely, 2^25870927 is an apocalyptic number.

25870927 is a deficient number, since it is larger than the sum of its proper divisors (17529).

25870927 is a wasteful number, since it uses less digits than its factorization.

25870927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17528.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 25870927 is about 5086.3471175294. The cubic root of 25870927 is about 295.7585648425.

It can be divided in two parts, 2 and 5870927, that added together give a square (5870929 = 2423²).

The spelling of 25870927 in words is "twenty-five million, eight hundred seventy thousand, nine hundred twenty-seven".