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55211055 = 3519193723
BaseRepresentation
bin1101001010011…
…1010000101111
310211220000022220
43102213100233
5103113223210
65251210423
71240200114
oct322472057
9124800286
1055211055
112918a979
12165a6a13
13b591283
14749290b
154ca8c70
hex34a742f

55211055 has 16 divisors (see below), whose sum is σ = 92987520. Its totient is φ = 27895968.

The previous prime is 55211029. The next prime is 55211069. The reversal of 55211055 is 55011255.

It is not a de Polignac number, because 55211055 - 215 = 55178287 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96577 + ... + 97146.

It is an arithmetic number, because the mean of its divisors is an integer number (5811720).

Almost surely, 255211055 is an apocalyptic number.

55211055 is a deficient number, since it is larger than the sum of its proper divisors (37776465).

55211055 is a wasteful number, since it uses less digits than its factorization.

55211055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193750.

The product of its (nonzero) digits is 1250, while the sum is 24.

The square root of 55211055 is about 7430.4141876480. The cubic root of 55211055 is about 380.7810688949.

The spelling of 55211055 in words is "fifty-five million, two hundred eleven thousand, fifty-five".

Divisors: 1 3 5 15 19 57 95 285 193723 581169 968615 2905845 3680737 11042211 18403685 55211055