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25030 = 252503
BaseRepresentation
bin110000111000110
31021100001
412013012
51300110
6311514
7132655
oct60706
937301
1025030
1117895
121259a
13b515
14919c
15763a
hex61c6

25030 has 8 divisors (see below), whose sum is σ = 45072. Its totient is φ = 10008.

The previous prime is 25013. The next prime is 25031. The reversal of 25030 is 3052.

25030 is nontrivially palindromic in base 8.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 2503 = 25030 / (2 + 5 + 0 + 3 + 0).

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 24998 and 25016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25031) by changing a digit.

25030 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1242 + ... + 1261.

It is an arithmetic number, because the mean of its divisors is an integer number (5634).

225030 is an apocalyptic number.

25030 is a deficient number, since it is larger than the sum of its proper divisors (20042).

25030 is a wasteful number, since it uses less digits than its factorization.

25030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510.

The product of its (nonzero) digits is 30, while the sum is 10.

The square root of 25030 is about 158.2087228948. The cubic root of 25030 is about 29.2518687778.

Adding to 25030 its reverse (3052), we get a palindrome (28082).

The spelling of 25030 in words is "twenty-five thousand, thirty".

Divisors: 1 2 5 10 2503 5006 12515 25030