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25223269 = 191132059
BaseRepresentation
bin110000000111…
…0000001100101
31202110110211011
41200032001211
522424121034
62300342221
7424252141
oct140160145
952413734
1025223269
1113268685
128544971
1352c1a16
1434c8221
152333864
hex180e065

25223269 has 4 divisors (see below), whose sum is σ = 25355520. Its totient is φ = 25091020.

The previous prime is 25223251. The next prime is 25223273. The reversal of 25223269 is 96232252.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25223269 - 27 = 25223141 is a prime.

It is a super-2 number, since 2×252232692 = 1272426598092722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25223269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25223669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65839 + ... + 66220.

It is an arithmetic number, because the mean of its divisors is an integer number (6338880).

Almost surely, 225223269 is an apocalyptic number.

It is an amenable number.

25223269 is a deficient number, since it is larger than the sum of its proper divisors (132251).

25223269 is a wasteful number, since it uses less digits than its factorization.

25223269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132250.

The product of its digits is 12960, while the sum is 31.

The square root of 25223269 is about 5022.2772723138. The cubic root of 25223269 is about 293.2696520106.

The spelling of 25223269 in words is "twenty-five million, two hundred twenty-three thousand, two hundred sixty-nine".

Divisors: 1 191 132059 25223269