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54481 = 743181
BaseRepresentation
bin1101010011010001
32202201211
431103101
53220411
61100121
7314560
oct152321
982654
1054481
1137a29
1227641
131ba4b
1415bd7
1511221
hexd4d1

54481 has 8 divisors (see below), whose sum is σ = 64064. Its totient is φ = 45360.

The previous prime is 54469. The next prime is 54493. The reversal of 54481 is 18445.

54481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (54469) and next prime (54493).

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

It is not a de Polignac number, because 54481 - 25 = 54449 is a prime.

It is a super-2 number, since 2×544812 = 5936358722, which contains 22 as substring.

54481 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (54401) 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, 211 + ... + 391.

It is an arithmetic number, because the mean of its divisors is an integer number (8008).

254481 is an apocalyptic number.

It is an amenable number.

54481 is a deficient number, since it is larger than the sum of its proper divisors (9583).

54481 is a wasteful number, since it uses less digits than its factorization.

54481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231.

The product of its digits is 640, while the sum is 22.

The square root of 54481 is about 233.4116535223. The cubic root of 54481 is about 37.9095262219.

It can be divided in two parts, 544 and 81, that added together give a 4-th power (625 = 54).

The spelling of 54481 in words is "fifty-four thousand, four hundred eighty-one".

Divisors: 1 7 43 181 301 1267 7783 54481