Search a number
-
+
54455717 = 113481909
BaseRepresentation
bin1100111110111…
…0110110100101
310210110122012102
43033232312211
5102420040332
65223101445
71230603011
oct317566645
9123418172
1054455717
1128814428
12162a1885
13b388524
147337541
154baa062
hex33eeda5

54455717 has 4 divisors (see below), whose sum is σ = 54937740. Its totient is φ = 53973696.

The previous prime is 54455701. The next prime is 54455741. The reversal of 54455717 is 71755445.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71755445 = 514351089.

It can be written as a sum of positive squares in 2 ways, for example, as 7107556 + 47348161 = 2666^2 + 6881^2 .

It is a cyclic number.

It is not a de Polignac number, because 54455717 - 24 = 54455701 is a prime.

It is a super-2 number, since 2×544557172 = 5930850227968178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54455017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240842 + ... + 241067.

It is an arithmetic number, because the mean of its divisors is an integer number (13734435).

Almost surely, 254455717 is an apocalyptic number.

It is an amenable number.

54455717 is a deficient number, since it is larger than the sum of its proper divisors (482023).

54455717 is a wasteful number, since it uses less digits than its factorization.

54455717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482022.

The product of its digits is 98000, while the sum is 38.

The square root of 54455717 is about 7379.4116974187. The cubic root of 54455717 is about 379.0366108933.

The spelling of 54455717 in words is "fifty-four million, four hundred fifty-five thousand, seven hundred seventeen".

Divisors: 1 113 481909 54455717