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54120550 = 25211195179
BaseRepresentation
bin1100111001110…
…1000001100110
310202211121102211
43032131001212
5102323324200
65211554034
71225005601
oct316350146
9122747384
1054120550
1128605630
121615b91a
13b29bac3
14728b338
154b40aba
hex339d066

54120550 has 48 divisors (see below), whose sum is σ = 115617600. Its totient is φ = 18640800.

The previous prime is 54120527. The next prime is 54120551. The reversal of 54120550 is 5502145.

54120550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54120551) 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 23 ways as a sum of consecutive naturals, for example, 7861 + ... + 13039.

It is an arithmetic number, because the mean of its divisors is an integer number (2408700).

Almost surely, 254120550 is an apocalyptic number.

54120550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

54120550 is an abundant number, since it is smaller than the sum of its proper divisors (61497050).

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

54120550 is a wasteful number, since it uses less digits than its factorization.

54120550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5221 (or 5216 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 54120550 is about 7356.6670442531. The cubic root of 54120550 is about 378.2573716362.

Adding to 54120550 its reverse (5502145), we get a palindrome (59622695).

The spelling of 54120550 in words is "fifty-four million, one hundred twenty thousand, five hundred fifty".

Divisors: 1 2 5 10 11 19 22 25 38 50 55 95 110 190 209 275 418 475 550 950 1045 2090 5179 5225 10358 10450 25895 51790 56969 98401 113938 129475 196802 258950 284845 492005 569690 984010 1082411 1424225 2164822 2460025 2848450 4920050 5412055 10824110 27060275 54120550