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54638081 is a prime number
BaseRepresentation
bin1101000001101…
…1011000000001
310210210220100122
43100123120001
5102441404311
65231030025
71232262461
oct320333001
9123726318
1054638081
1128929443
121636b315
13b420534
147383ba1
154be40db
hex341b601

54638081 has 2 divisors, whose sum is σ = 54638082. Its totient is φ = 54638080.

The previous prime is 54638069. The next prime is 54638083. The reversal of 54638081 is 18083645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54538225 + 99856 = 7385^2 + 316^2 .

It is a cyclic number.

It is not a de Polignac number, because 54638081 - 210 = 54637057 is a prime.

It is a super-2 number, since 2×546380812 = 5970639790725122, which contains 22 as substring.

Together with 54638083, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54638083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27319040 + 27319041.

It is an arithmetic number, because the mean of its divisors is an integer number (27319041).

Almost surely, 254638081 is an apocalyptic number.

It is an amenable number.

54638081 is a deficient number, since it is larger than the sum of its proper divisors (1).

54638081 is an equidigital number, since it uses as much as digits as its factorization.

54638081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 54638081 is about 7391.7576394251. The cubic root of 54638081 is about 379.4592516438.

The spelling of 54638081 in words is "fifty-four million, six hundred thirty-eight thousand, eighty-one".