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25330253 = 132967189
BaseRepresentation
bin110000010100…
…0001001001101
31202122220120112
41200220021031
522441032003
62302525405
7425206064
oct140501115
952586515
1025330253
1113330aa3
128596865
13532b620
1435151db
1523553d8
hex182824d

25330253 has 8 divisors (see below), whose sum is σ = 28219800. Its totient is φ = 22575168.

The previous prime is 25330247. The next prime is 25330259. The reversal of 25330253 is 35203352.

It is an interprime number because it is at equal distance from previous prime (25330247) and next prime (25330259).

It can be written as a sum of positive squares in 4 ways, for example, as 5943844 + 19386409 = 2438^2 + 4403^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 25330253 - 210 = 25329229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25330259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33218 + ... + 33971.

It is an arithmetic number, because the mean of its divisors is an integer number (3527475).

Almost surely, 225330253 is an apocalyptic number.

It is an amenable number.

25330253 is a deficient number, since it is larger than the sum of its proper divisors (2889547).

25330253 is a wasteful number, since it uses less digits than its factorization.

25330253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67231.

The product of its (nonzero) digits is 2700, while the sum is 23.

The square root of 25330253 is about 5032.9169474570. The cubic root of 25330253 is about 293.6836996589.

The spelling of 25330253 in words is "twenty-five million, three hundred thirty thousand, two hundred fifty-three".

Divisors: 1 13 29 377 67189 873457 1948481 25330253