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25888 = 25809
BaseRepresentation
bin110010100100000
31022111211
412110200
51312023
6315504
7135322
oct62440
938454
1025888
11184a5
1212b94
13ba25
149612
157a0d
hex6520

25888 has 12 divisors (see below), whose sum is σ = 51030. Its totient is φ = 12928.

The previous prime is 25873. The next prime is 25889. The reversal of 25888 is 88852.

It can be written as a sum of positive squares in only one way, i.e., 17424 + 8464 = 132^2 + 92^2 .

It is a plaindrome in base 10.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (25889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 373 + ... + 436.

225888 is an apocalyptic number.

It is an amenable number.

25888 is a deficient number, since it is larger than the sum of its proper divisors (25142).

25888 is an equidigital number, since it uses as much as digits as its factorization.

25888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819 (or 811 counting only the distinct ones).

The product of its digits is 5120, while the sum is 31.

The square root of 25888 is about 160.8974828890. The cubic root of 25888 is about 29.5823610516.

The spelling of 25888 in words is "twenty-five thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 16 32 809 1618 3236 6472 12944 25888