25867001 has 4 divisors (see below), whose sum is σ = 25880400. Its totient is φ = 25853604.

The previous prime is 25866991. The next prime is 25867007. The reversal of 25867001 is 10076852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25867001 - 2¹⁸ = 25604857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25867007) 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, 3191 + ... + 7868.

It is an arithmetic number, because the mean of its divisors is an integer number (6470100).

Almost surely, 2^25867001 is an apocalyptic number.

It is an amenable number.

25867001 is a deficient number, since it is larger than the sum of its proper divisors (13399).

25867001 is a wasteful number, since it uses less digits than its factorization.

25867001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13398.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 25867001 is about 5085.9611677637. The cubic root of 25867001 is about 295.7436033007.

The spelling of 25867001 in words is "twenty-five million, eight hundred sixty-seven thousand, one".