Search a number
-
+
55054471 is a prime number
BaseRepresentation
bin1101001000000…
…1000010000111
310211121001112111
43102001002013
5103043220341
65244001451
71235645443
oct322010207
9124531474
1055054471
112909326a
1216530287
13b537c14
147451823
154c77681
hex3481087

55054471 has 2 divisors, whose sum is σ = 55054472. Its totient is φ = 55054470.

The previous prime is 55054469. The next prime is 55054477. The reversal of 55054471 is 17445055.

55054471 is nontrivially palindromic in base 4.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55054471 - 21 = 55054469 is a prime.

It is a super-3 number, since 3×550544713 (a number of 24 digits) contains 333 as substring.

Together with 55054469, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55054477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27527235 + 27527236.

It is an arithmetic number, because the mean of its divisors is an integer number (27527236).

Almost surely, 255054471 is an apocalyptic number.

55054471 is a deficient number, since it is larger than the sum of its proper divisors (1).

55054471 is an equidigital number, since it uses as much as digits as its factorization.

55054471 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 55054471 is about 7419.8700123385. The cubic root of 55054471 is about 380.4207504852.

The spelling of 55054471 in words is "fifty-five million, fifty-four thousand, four hundred seventy-one".