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54869 is a prime number
BaseRepresentation
bin1101011001010101
32210021012
431121111
53223434
61102005
7315653
oct153125
983235
1054869
1138251
1227905
131bc89
1415dd3
15113ce
hexd655

54869 has 2 divisors, whose sum is σ = 54870. Its totient is φ = 54868.

The previous prime is 54851. The next prime is 54877. The reversal of 54869 is 96845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36100 + 18769 = 190^2 + 137^2 .

It is a cyclic number.

It is not a de Polignac number, because 54869 - 212 = 50773 is a prime.

It is a super-2 number, since 2×548692 = 6021214322, which contains 22 as substring.

It is a Chen prime.

It is a plaindrome in base 15.

It is a nialpdrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27434 + 27435.

It is an arithmetic number, because the mean of its divisors is an integer number (27435).

254869 is an apocalyptic number.

It is an amenable number.

54869 is a deficient number, since it is larger than the sum of its proper divisors (1).

54869 is an equidigital number, since it uses as much as digits as its factorization.

54869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 54869 is about 234.2413285481. The cubic root of 54869 is about 37.9993074666. Note that the first 3 decimals are identical.

The spelling of 54869 in words is "fifty-four thousand, eight hundred sixty-nine".