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56503575 = 355271131
BaseRepresentation
bin1101011110001…
…0110100010111
310221022200100000
43113202310113
5103431103300
65335022343
71254162312
oct327426427
9127280300
1056503575
1129992a77
1216b0a9b3
13b92468b
14770b979
154e61c00
hex35e2d17

56503575 has 72 divisors (see below), whose sum is σ = 107243136. Its totient is φ = 29484000.

The previous prime is 56503561. The next prime is 56503589. The reversal of 56503575 is 57530565.

It is an interprime number because it is at equal distance from previous prime (56503561) and next prime (56503589).

It is not a de Polignac number, because 56503575 - 212 = 56499479 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 431260 + ... + 431390.

It is an arithmetic number, because the mean of its divisors is an integer number (1489488).

Almost surely, 256503575 is an apocalyptic number.

56503575 is a deficient number, since it is larger than the sum of its proper divisors (50739561).

56503575 is a wasteful number, since it uses less digits than its factorization.

56503575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 78750, while the sum is 36.

The square root of 56503575 is about 7516.8859908874. The cubic root of 56503575 is about 383.7296070112.

The spelling of 56503575 in words is "fifty-six million, five hundred three thousand, five hundred seventy-five".

Divisors: 1 3 5 9 15 25 27 45 71 75 81 131 135 213 225 243 355 393 405 639 655 675 1065 1179 1215 1775 1917 1965 2025 3195 3275 3537 5325 5751 5895 6075 9301 9585 9825 10611 15975 17253 17685 27903 28755 29475 31833 46505 47925 53055 83709 86265 88425 139515 143775 159165 232525 251127 265275 418545 431325 697575 753381 795825 1255635 2092725 2260143 3766905 6278175 11300715 18834525 56503575