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225535580 = 22511276779
BaseRepresentation
bin11010111000101…
…10011001011100
3120201101101122122
431130112121130
5430214114310
634214002112
75406010064
oct1534263134
9521341578
10225535580
11106344246
1263646338
133795820a
1421d4c3a4
1514c00555
hexd71665c

225535580 has 12 divisors (see below), whose sum is σ = 473624760. Its totient is φ = 90214224.

The previous prime is 225535553. The next prime is 225535589. The reversal of 225535580 is 85535522.

It is a self number, because there is not a number n which added to its sum of digits gives 225535580.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225535589) 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, 5638370 + ... + 5638409.

It is an arithmetic number, because the mean of its divisors is an integer number (39468730).

Almost surely, 2225535580 is an apocalyptic number.

225535580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

225535580 is an abundant number, since it is smaller than the sum of its proper divisors (248089180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225535580 is a wasteful number, since it uses less digits than its factorization.

225535580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11276788 (or 11276786 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 225535580 is about 15017.8420553687. The cubic root of 225535580 is about 608.7024105919.

The spelling of 225535580 in words is "two hundred twenty-five million, five hundred thirty-five thousand, five hundred eighty".

Divisors: 1 2 4 5 10 20 11276779 22553558 45107116 56383895 112767790 225535580