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55050510489 = 3133154783243
BaseRepresentation
bin110011010001010001…
…000010000010011001
312021002120020200112220
4303101101002002121
51400220412313424
641142335254253
73656126422062
oct632121020231
9167076220486
1055050510489
112138a63a367
12a80437a389
135264205180
1429433bd569
151672e77579
hexcd1442099

55050510489 has 32 divisors (see below), whose sum is σ = 81746939904. Its totient is φ = 32724095040.

The previous prime is 55050510461. The next prime is 55050510509. The reversal of 55050510489 is 98401505055.

It is a happy number.

It is not a de Polignac number, because 55050510489 - 212 = 55050506393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55050510489.

It is not an unprimeable number, because it can be changed into a prime (55050510089) 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 31 ways as a sum of consecutive naturals, for example, 619702 + ... + 702944.

It is an arithmetic number, because the mean of its divisors is an integer number (2554591872).

Almost surely, 255050510489 is an apocalyptic number.

It is an amenable number.

55050510489 is a deficient number, since it is larger than the sum of its proper divisors (26696429415).

55050510489 is a wasteful number, since it uses less digits than its factorization.

55050510489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83837.

The product of its (nonzero) digits is 180000, while the sum is 42.

The spelling of 55050510489 in words is "fifty-five billion, fifty million, five hundred ten thousand, four hundred eighty-nine".

Divisors: 1 3 13 31 39 93 403 547 1209 1641 7111 16957 21333 50871 83243 220441 249729 661323 1082159 2580533 3246477 7741599 33546929 45533921 100640787 136601763 591940973 1411551551 1775822919 4234654653 18350170163 55050510489