55411 has 2 divisors, whose sum is σ = 55412. Its totient is φ = 55410.

The previous prime is 55399. The next prime is 55439. The reversal of 55411 is 11455.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55411 - 2¹⁵ = 22643 is a prime.

It is an Ulam number.

It is a nialpdrome in base 10 and base 16.

It is not a weakly prime, because it can be changed into another prime (55441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27705 + 27706.

It is an arithmetic number, because the mean of its divisors is an integer number (27706).

2⁵⁵⁴¹¹ is an apocalyptic number.

55411 is a deficient number, since it is larger than the sum of its proper divisors (1).

55411 is an equidigital number, since it uses as much as digits as its factorization.

55411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100, while the sum is 16.

The square root of 55411 is about 235.3954120199. The cubic root of 55411 is about 38.1240177119.

Adding to 55411 its reverse (11455), we get a palindrome (66866).

Subtracting from 55411 its reverse (11455), we obtain a triangular number (43956 = T₂₉₆).

It can be divided in two parts, 554 and 11, that added together give a palindrome (565).

The spelling of 55411 in words is "fifty-five thousand, four hundred eleven".