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55458685455 = 3517709306749
BaseRepresentation
bin110011101001100110…
…000110001000001111
312022011000022010100020
4303221212012020033
51402034410413310
641251040033223
74002214022415
oct635146061017
9168130263306
1055458685455
1121579a89248
12a8b9002813
1352ca949714
1429816b12b5
151698c03170
hexce998620f

55458685455 has 32 divisors (see below), whose sum is σ = 94086360000. Its totient is φ = 27798730752.

The previous prime is 55458685441. The next prime is 55458685487.

55458685455 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 55458685455 - 27 = 55458685327 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 27421 + ... + 334169.

It is an arithmetic number, because the mean of its divisors is an integer number (2940198750).

Almost surely, 255458685455 is an apocalyptic number.

55458685455 is a deficient number, since it is larger than the sum of its proper divisors (38627674545).

55458685455 is a wasteful number, since it uses less digits than its factorization.

55458685455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307483.

The product of its digits is 96000000, while the sum is 60.

The spelling of 55458685455 in words is "fifty-five billion, four hundred fifty-eight million, six hundred eighty-five thousand, four hundred fifty-five".

Divisors: 1 3 5 15 17 51 85 255 709 2127 3545 10635 12053 36159 60265 180795 306749 920247 1533745 4601235 5214733 15644199 26073665 78220995 217485041 652455123 1087425205 3262275615 3697245697 11091737091 18486228485 55458685455