Search a number
-
+
25975 = 521039

25975 has 6 divisors (see below), whose sum is σ = 32240. Its totient is φ = 20760.

The previous prime is 25969. The next prime is 25981. The reversal of 25975 is 57952.

It is an interprime number because it is at equal distance from previous prime (25969) and next prime (25981).

It is not a de Polignac number, because 25975 - 25 = 25943 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 495 + ... + 544.

225975 is an apocalyptic number.

25975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25975 is a deficient number, since it is larger than the sum of its proper divisors (6265).

25975 is a wasteful number, since it uses less digits than its factorization.

25975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049 (or 1044 counting only the distinct ones).

The product of its digits is 3150, while the sum is 28.

The square root of 25975 is about 161.1676146129. The cubic root of 25975 is about 29.6154624594.

It can be divided in two parts, 25 and 975, that added together give a cube (1000 = 103).

The spelling of 25975 in words is "twenty-five thousand, nine hundred seventy-five".

Divisors: 1 5 25 1039 5195 25975