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25026 = 234397

25026 has 16 divisors (see below), whose sum is σ = 51744. Its totient is φ = 8064.

The previous prime is 25013. The next prime is 25031. The reversal of 25026 is 62052.

Adding to 25026 its reverse (62052), we get a palindrome (87078).

It can be divided in two parts, 250 and 26, that added together give a triangular number (276 = T23).

It is a Curzon number.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 24996 and 25014.

It is an unprimeable number.

25026 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 7 ways as a sum of consecutive naturals, for example, 210 + ... + 306.

It is an arithmetic number, because the mean of its divisors is an integer number (3234).

25026 is an abundant number, since it is smaller than the sum of its proper divisors (26718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25872).

25026 is a wasteful number, since it uses less digits than its factorization.

25026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 25026 is about 158.1960808617. The cubic root of 25026 is about 29.2503104650.

The spelling of 25026 in words is "twenty-five thousand, twenty-six".

Divisors: 1 2 3 6 43 86 97 129 194 258 291 582 4171 8342 12513 25026