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25852231 = 123121001
BaseRepresentation
bin110001010011…
…1100101000111
31210122102121001
41202213211013
523104232411
62322034131
7432511636
oct142474507
953572531
1025852231
1113658189
1287a8947
1354820a2
14360d51d
152409dc1
hex18a7947

25852231 has 4 divisors (see below), whose sum is σ = 25874464. Its totient is φ = 25830000.

The previous prime is 25852201. The next prime is 25852237. The reversal of 25852231 is 13225852.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25852231 - 223 = 17463623 is a prime.

It is a super-2 number, since 2×258522312 = 1336675695354722, which contains 22 as substring.

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 25852231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25852237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9270 + ... + 11731.

It is an arithmetic number, because the mean of its divisors is an integer number (6468616).

Almost surely, 225852231 is an apocalyptic number.

25852231 is a deficient number, since it is larger than the sum of its proper divisors (22233).

25852231 is a wasteful number, since it uses less digits than its factorization.

25852231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22232.

The product of its digits is 4800, while the sum is 28.

The square root of 25852231 is about 5084.5089241735. The cubic root of 25852231 is about 295.6873029371.

The spelling of 25852231 in words is "twenty-five million, eight hundred fifty-two thousand, two hundred thirty-one".

Divisors: 1 1231 21001 25852231