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25330223 = 157161339
BaseRepresentation
bin110000010100…
…0001000101111
31202122220112102
41200220020233
522441031343
62302525315
7425206022
oct140501057
952586472
1025330223
1113330a76
12859683b
13532b5c9
1435151b9
1523553b8
hex182822f

25330223 has 4 divisors (see below), whose sum is σ = 25491720. Its totient is φ = 25168728.

The previous prime is 25330213. The next prime is 25330231. The reversal of 25330223 is 32203352.

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 25330223 - 212 = 25326127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25330195 and 25330204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25330213) 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, 80513 + ... + 80826.

It is an arithmetic number, because the mean of its divisors is an integer number (6372930).

Almost surely, 225330223 is an apocalyptic number.

25330223 is a deficient number, since it is larger than the sum of its proper divisors (161497).

25330223 is a wasteful number, since it uses less digits than its factorization.

25330223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161496.

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 25330223 is about 5032.9139670771. The cubic root of 25330223 is about 293.6835837170.

Adding to 25330223 its reverse (32203352), we get a palindrome (57533575).

The spelling of 25330223 in words is "twenty-five million, three hundred thirty thousand, two hundred twenty-three".

Divisors: 1 157 161339 25330223