55061 has 2 divisors, whose sum is σ = 55062.
Its totient is φ = 55060.
The previous prime is 55057. The next prime is 55073. The reversal of 55061 is 16055.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 46225 + 8836 = 215^2 + 94^2
It is a cyclic number.
It is not a de Polignac number, because 55061 - 22 = 55057 is a prime.
It is a plaindrome in base 15.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (55001) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27530 + 27531.
It is an arithmetic number, because the mean of its divisors is an integer number (27531).
255061 is an apocalyptic number.
It is an amenable number.
55061 is a deficient number, since it is larger than the sum of its proper divisors (1).
55061 is an equidigital number, since it uses as much as digits as its factorization.
55061 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 150, while the sum is 17.
The square root of 55061 is about 234.6508043881.
The cubic root of 55061 is about 38.0435788131.
The spelling of 55061 in words is "fifty-five thousand, sixty-one".