25151 has 4 divisors (see below), whose sum is σ = 28752. Its totient is φ = 21552.

The previous prime is 25147. The next prime is 25153. The reversal of 25151 is 15152.

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 25151 - 2² = 25147 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

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 25151.

It is not an unprimeable number, because it can be changed into a prime (25153) 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, 1790 + ... + 1803.

It is an arithmetic number, because the mean of its divisors is an integer number (7188).

2²⁵¹⁵¹ is an apocalyptic number.

25151 is a deficient number, since it is larger than the sum of its proper divisors (3601).

25151 is an equidigital number, since it uses as much as digits as its factorization.

25151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3600.

The product of its digits is 50, while the sum is 14.

The square root of 25151 is about 158.5906680735. The cubic root of 25151 is about 29.2989294767.

Subtracting from 25151 its reverse (15152), we obtain a palindrome (9999).

The spelling of 25151 in words is "twenty-five thousand, one hundred fifty-one".