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25041289 = 7131716187
BaseRepresentation
bin101111110000…
…1100110001001
31202010020012011
41133201212021
522402310124
62252415521
7422563450
oct137414611
952106164
1025041289
1113153989
1284775a1
135259c40
14347bb97
1522e9994
hex17e1989

25041289 has 16 divisors (see below), whose sum is σ = 32635008. Its totient is φ = 18646272.

The previous prime is 25041287. The next prime is 25041299. The reversal of 25041289 is 98214052.

It is a cyclic number.

It is not a de Polignac number, because 25041289 - 21 = 25041287 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25041289.

It is not an unprimeable number, because it can be changed into a prime (25041287) 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 15 ways as a sum of consecutive naturals, for example, 6547 + ... + 9640.

It is an arithmetic number, because the mean of its divisors is an integer number (2039688).

Almost surely, 225041289 is an apocalyptic number.

It is an amenable number.

25041289 is a deficient number, since it is larger than the sum of its proper divisors (7593719).

25041289 is a wasteful number, since it uses less digits than its factorization.

25041289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16224.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 25041289 is about 5004.1271966248. The cubic root of 25041289 is about 292.5626583082.

The spelling of 25041289 in words is "twenty-five million, forty-one thousand, two hundred eighty-nine".

Divisors: 1 7 13 17 91 119 221 1547 16187 113309 210431 275179 1473017 1926253 3577327 25041289