25775 has 6 divisors (see below), whose sum is σ = 31992. Its totient is φ = 20600.

The previous prime is 25771. The next prime is 25793. The reversal of 25775 is 57752.

It is not a de Polignac number, because 25775 - 2² = 25771 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 25775.

It is not an unprimeable number, because it can be changed into a prime (25771) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 491 + ... + 540.

It is an arithmetic number, because the mean of its divisors is an integer number (5332).

2²⁵⁷⁷⁵ is an apocalyptic number.

25775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25775 is a deficient number, since it is larger than the sum of its proper divisors (6217).

25775 is a wasteful number, since it uses less digits than its factorization.

25775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1036 counting only the distinct ones).

The product of its digits is 2450, while the sum is 26.

The square root of 25775 is about 160.5459435800. The cubic root of 25775 is about 29.5392563652.

The spelling of 25775 in words is "twenty-five thousand, seven hundred seventy-five".