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25272285 = 35172331139
BaseRepresentation
bin110000001100…
…1111111011101
31202112222001120
41200121333131
522432203120
62301401153
7424545063
oct140317735
952488046
1025272285
11132a1495
1285691b9
13530b11c
1434dc033
152343140
hex1819fdd

25272285 has 64 divisors (see below), whose sum is σ = 46448640. Its totient is φ = 11658240.

The previous prime is 25272271. The next prime is 25272287. The reversal of 25272285 is 58227252.

It is not a de Polignac number, because 25272285 - 211 = 25270237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25272287) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 181746 + ... + 181884.

It is an arithmetic number, because the mean of its divisors is an integer number (725760).

Almost surely, 225272285 is an apocalyptic number.

It is an amenable number.

25272285 is a deficient number, since it is larger than the sum of its proper divisors (21176355).

25272285 is a wasteful number, since it uses less digits than its factorization.

25272285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218.

The product of its digits is 22400, while the sum is 33.

The square root of 25272285 is about 5027.1547618907. The cubic root of 25272285 is about 293.4594979261.

The spelling of 25272285 in words is "twenty-five million, two hundred seventy-two thousand, two hundred eighty-five".

Divisors: 1 3 5 15 17 23 31 51 69 85 93 115 139 155 255 345 391 417 465 527 695 713 1173 1581 1955 2085 2139 2363 2635 3197 3565 4309 5865 7089 7905 9591 10695 11815 12121 12927 15985 21545 35445 36363 47955 54349 60605 64635 73253 99107 163047 181815 219759 271745 297321 366265 495535 815235 1098795 1486605 1684819 5054457 8424095 25272285