25071 has 8 divisors (see below), whose sum is σ = 34224. Its totient is φ = 16320.

The previous prime is 25057. The next prime is 25073. The reversal of 25071 is 17052.

It is a happy number.

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

It is not a de Polignac number, because 25071 - 2⁷ = 24943 is a prime.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 25071.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 25071.

It is not an unprimeable number, because it can be changed into a prime (25073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115 + ... + 251.

It is an arithmetic number, because the mean of its divisors is an integer number (4278).

2²⁵⁰⁷¹ is an apocalyptic number.

25071 is a deficient number, since it is larger than the sum of its proper divisors (9153).

25071 is a wasteful number, since it uses less digits than its factorization.

25071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201.

The product of its (nonzero) digits is 70, while the sum is 15.

The square root of 25071 is about 158.3382455378. The cubic root of 25071 is about 29.2678319203.

The spelling of 25071 in words is "twenty-five thousand, seventy-one".