Search a number
-
+
54550385 = 510910077
BaseRepresentation
bin1101000000010…
…1111101110001
310210122110001122
43100011331301
5102431103020
65225112025
71231446011
oct320057561
9123573048
1054550385
112887956a
1216328615
13b3bc646
14735dc41
154bc8125
hex3405f71

54550385 has 4 divisors (see below), whose sum is σ = 65460468. Its totient is φ = 43640304.

The previous prime is 54550381. The next prime is 54550417. The reversal of 54550385 is 58305545.

54550385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28376929 + 26173456 = 5327^2 + 5116^2 .

It is a cyclic number.

It is not a de Polignac number, because 54550385 - 22 = 54550381 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54550381) 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 3 ways as a sum of consecutive naturals, for example, 5455034 + ... + 5455043.

It is an arithmetic number, because the mean of its divisors is an integer number (16365117).

Almost surely, 254550385 is an apocalyptic number.

It is an amenable number.

54550385 is a deficient number, since it is larger than the sum of its proper divisors (10910083).

54550385 is a wasteful number, since it uses less digits than its factorization.

54550385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10910082.

The product of its (nonzero) digits is 60000, while the sum is 35.

The square root of 54550385 is about 7385.8232445679. The cubic root of 54550385 is about 379.2561278797.

The spelling of 54550385 in words is "fifty-four million, five hundred fifty thousand, three hundred eighty-five".

Divisors: 1 5 10910077 54550385