25958 has 4 divisors (see below), whose sum is σ = 38940. Its totient is φ = 12978.

The previous prime is 25951. The next prime is 25969. The reversal of 25958 is 85952.

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

It is a nialpdrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 25958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25951) by changing a digit.

25958 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6488 + ... + 6491.

It is an arithmetic number, because the mean of its divisors is an integer number (9735).

2²⁵⁹⁵⁸ is an apocalyptic number.

25958 is a deficient number, since it is larger than the sum of its proper divisors (12982).

25958 is a wasteful number, since it uses less digits than its factorization.

25958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12981.

The product of its digits is 3600, while the sum is 29.

The square root of 25958 is about 161.1148658566. The cubic root of 25958 is about 29.6090001850.

The spelling of 25958 in words is "twenty-five thousand, nine hundred fifty-eight".