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25976 = 2317191

25976 has 16 divisors (see below), whose sum is σ = 51840. Its totient is φ = 12160.

The previous prime is 25969. The next prime is 25981. The reversal of 25976 is 67952.

Its product of digits (3780) is a multiple of the sum of its prime divisors (210).

It is a nialpdrome in base 13.

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 25976.

It is an unprimeable number.

25976 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 in 3 ways as a sum of consecutive naturals, for example, 41 + ... + 231.

It is an arithmetic number, because the mean of its divisors is an integer number (3240).

225976 is an apocalyptic number.

It is an amenable number.

25976 is a deficient number, since it is larger than the sum of its proper divisors (25864).

25976 is a wasteful number, since it uses less digits than its factorization.

25976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 210 counting only the distinct ones).

The product of its digits is 3780, while the sum is 29.

The square root of 25976 is about 161.1707169432. The cubic root of 25976 is about 29.6158425054.

It can be divided in two parts, 25 and 976, that added together give a palindrome (1001).

The spelling of 25976 in words is "twenty-five thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 17 34 68 136 191 382 764 1528 3247 6494 12988 25976