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55132554 = 2317235333
BaseRepresentation
bin1101001001010…
…0000110001010
310211202000122110
43102110012022
5103103220204
65245403150
71236422211
oct322240612
9124660573
1055132554
11291369a4
12165694b6
13b564619
147472078
154c90889
hex349418a

55132554 has 16 divisors (see below), whose sum is σ = 110349792. Its totient is φ = 18363408.

The previous prime is 55132531. The next prime is 55132603. The reversal of 55132554 is 45523155.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7672 + ... + 13004.

It is an arithmetic number, because the mean of its divisors is an integer number (6896862).

Almost surely, 255132554 is an apocalyptic number.

55132554 is an abundant number, since it is smaller than the sum of its proper divisors (55217238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55132554 is a wasteful number, since it uses less digits than its factorization.

55132554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7061.

The product of its digits is 15000, while the sum is 30.

The square root of 55132554 is about 7425.1298978536. The cubic root of 55132554 is about 380.6005140350.

The spelling of 55132554 in words is "fifty-five million, one hundred thirty-two thousand, five hundred fifty-four".

Divisors: 1 2 3 6 1723 3446 5169 5333 10338 10666 15999 31998 9188759 18377518 27566277 55132554