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55117833 = 3157117023
BaseRepresentation
bin1101001001000…
…0100000001001
310211201021110020
43102100200021
5103102232313
65245211053
71236331251
oct322204011
9124637406
1055117833
1129126931
1216560a89
13b55aa04
14746a961
154c8b323
hex3490809

55117833 has 8 divisors (see below), whose sum is σ = 73959168. Its totient is φ = 36510864.

The previous prime is 55117819. The next prime is 55117861. The reversal of 55117833 is 33871155.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55117833 - 25 = 55117801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55117794 and 55117803.

It is not an unprimeable number, because it can be changed into a prime (55112833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58041 + ... + 58982.

It is an arithmetic number, because the mean of its divisors is an integer number (9244896).

Almost surely, 255117833 is an apocalyptic number.

It is an amenable number.

55117833 is a deficient number, since it is larger than the sum of its proper divisors (18841335).

55117833 is a wasteful number, since it uses less digits than its factorization.

55117833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117183.

The product of its digits is 12600, while the sum is 33.

The square root of 55117833 is about 7424.1385358841. The cubic root of 55117833 is about 380.5666361745.

Adding to 55117833 its reverse (33871155), we get a palindrome (88988988).

The spelling of 55117833 in words is "fifty-five million, one hundred seventeen thousand, eight hundred thirty-three".

Divisors: 1 3 157 471 117023 351069 18372611 55117833