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55469 is a prime number
BaseRepresentation
bin1101100010101101
32211002102
431202231
53233334
61104445
7320501
oct154255
984072
1055469
1138747
1228125
131c32b
1416301
151167e

55469 has 2 divisors, whose sum is σ = 55470. Its totient is φ = 55468.

The previous prime is 55457. The next prime is 55487. The reversal of 55469 is 96455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28900 + 26569 = 170^2 + 163^2 .

It is a cyclic number.

It is not a de Polignac number, because 55469 - 28 = 55213 is a prime.

It is a super-2 number, since 2×554692 = 6153619922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 55469.

It is not a weakly prime, because it can be changed into another prime (55439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27734 + 27735.

It is an arithmetic number, because the mean of its divisors is an integer number (27735).

255469 is an apocalyptic number.

It is an amenable number.

55469 is a deficient number, since it is larger than the sum of its proper divisors (1).

55469 is an equidigital number, since it uses as much as digits as its factorization.

55469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

The square root of 55469 is about 235.5185767620. The cubic root of 55469 is about 38.1373148428.

It can be divided in two parts, 5546 and 9, that added together give a palindrome (5555).

The spelling of 55469 in words is "fifty-five thousand, four hundred sixty-nine".