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55628125 = 5572543
BaseRepresentation
bin1101010000110…
…1000101011101
310212200012102221
43110031011131
5103220100000
65304145341
71243555060
oct324150535
9125605387
1055628125
1129445263
1216768251
13b6a9067
1475608d7
154d3c61a
hex350d15d

55628125 has 24 divisors (see below), whose sum is σ = 79494912. Its totient is φ = 38130000.

The previous prime is 55628113. The next prime is 55628129. The reversal of 55628125 is 52182655.

55628125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55628125 - 213 = 55619933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55628129) 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 23 ways as a sum of consecutive naturals, for example, 20604 + ... + 23146.

It is an arithmetic number, because the mean of its divisors is an integer number (3312288).

Almost surely, 255628125 is an apocalyptic number.

It is an amenable number.

55628125 is a deficient number, since it is larger than the sum of its proper divisors (23866787).

55628125 is an frugal number, since it uses more digits than its factorization.

55628125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575 (or 2555 counting only the distinct ones).

The product of its digits is 24000, while the sum is 34.

The square root of 55628125 is about 7458.4264426218. The cubic root of 55628125 is about 381.7374844489.

The spelling of 55628125 in words is "fifty-five million, six hundred twenty-eight thousand, one hundred twenty-five".

Divisors: 1 5 7 25 35 125 175 625 875 2543 3125 4375 12715 17801 21875 63575 89005 317875 445025 1589375 2225125 7946875 11125625 55628125