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25872223 = 131990171
BaseRepresentation
bin110001010110…
…0011101011111
31210200110000111
41202230131133
523110402343
62322310451
7432624136
oct142543537
953613014
1025872223
1113671203
1287b8427
13548b210
14361691d
152410c9d
hex18ac75f

25872223 has 4 divisors (see below), whose sum is σ = 27862408. Its totient is φ = 23882040.

The previous prime is 25872199. The next prime is 25872233. The reversal of 25872223 is 32227852.

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

It is not a de Polignac number, because 25872223 - 213 = 25864031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25872233) 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, 995073 + ... + 995098.

It is an arithmetic number, because the mean of its divisors is an integer number (6965602).

Almost surely, 225872223 is an apocalyptic number.

25872223 is a deficient number, since it is larger than the sum of its proper divisors (1990185).

25872223 is a wasteful number, since it uses less digits than its factorization.

25872223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990184.

The product of its digits is 13440, while the sum is 31.

The square root of 25872223 is about 5086.4745158115. The cubic root of 25872223 is about 295.7635034196.

The spelling of 25872223 in words is "twenty-five million, eight hundred seventy-two thousand, two hundred twenty-three".

Divisors: 1 13 1990171 25872223