25495 has 4 divisors (see below), whose sum is σ = 30600. Its totient is φ = 20392.

The previous prime is 25471. The next prime is 25523. The reversal of 25495 is 59452.

25495 = 34² + 35² + ... + 48².

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 25495 - 2⁵ = 25463 is a prime.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2545 + ... + 2554.

It is an arithmetic number, because the mean of its divisors is an integer number (7650).

2²⁵⁴⁹⁵ is an apocalyptic number.

25495 is a deficient number, since it is larger than the sum of its proper divisors (5105).

25495 is an equidigital number, since it uses as much as digits as its factorization.

25495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5104.

The product of its digits is 1800, while the sum is 25.

The square root of 25495 is about 159.6715378519. The cubic root of 25495 is about 29.4319026792.

The spelling of 25495 in words is "twenty-five thousand, four hundred ninety-five".