25000159 has 4 divisors (see below), whose sum is σ = 25109560. Its totient is φ = 24890760.

The previous prime is 25000147. The next prime is 25000163. The reversal of 25000159 is 95100052.

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 25000159 - 2⁵ = 25000127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25000109) 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, 54357 + ... + 54814.

It is an arithmetic number, because the mean of its divisors is an integer number (6277390).

Almost surely, 2^25000159 is an apocalyptic number.

25000159 is a deficient number, since it is larger than the sum of its proper divisors (109401).

25000159 is a wasteful number, since it uses less digits than its factorization.

25000159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109400.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 25000159 is about 5000.0158999747. The cubic root of 25000159 is about 292.4023937117.

The spelling of 25000159 in words is "twenty-five million, one hundred fifty-nine", and thus it is an aban number.