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55275253 = 1143137853
BaseRepresentation
bin1101001011011…
…0111011110101
310212000021101121
43102312323311
5103122302003
65252423541
71240555225
oct322667365
9125007347
1055275253
1129224130
1216617bb1
13b5b4567
1474ac085
154cbccbd
hex34b6ef5

55275253 has 16 divisors (see below), whose sum is σ = 62225856. Its totient is φ = 48666240.

The previous prime is 55275223. The next prime is 55275293. The reversal of 55275253 is 35257255.

It is a cyclic number.

It is not a de Polignac number, because 55275253 - 25 = 55275221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55275223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64375 + ... + 65227.

It is an arithmetic number, because the mean of its divisors is an integer number (3889116).

Almost surely, 255275253 is an apocalyptic number.

It is an amenable number.

55275253 is a deficient number, since it is larger than the sum of its proper divisors (6950603).

55275253 is a wasteful number, since it uses less digits than its factorization.

55275253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044.

The product of its digits is 52500, while the sum is 34.

The square root of 55275253 is about 7434.7328802049. The cubic root of 55275253 is about 380.9285992180.

The spelling of 55275253 in words is "fifty-five million, two hundred seventy-five thousand, two hundred fifty-three".

Divisors: 1 11 43 137 473 853 1507 5891 9383 36679 64801 116861 403469 1285471 5025023 55275253