55006019 has 4 divisors (see below), whose sum is σ = 55024800. Its totient is φ = 54987240.

The previous prime is 55005991. The next prime is 55006037. The reversal of 55006019 is 91060055.

55006019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91060055 = 5 ⋅18212011.

It is a cyclic number.

It is not a de Polignac number, because 55006019 - 2⁸ = 55005763 is a prime.

It is a super-2 number, since 2×55006019² = 6051324252456722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55006219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3944 + ... + 11205.

It is an arithmetic number, because the mean of its divisors is an integer number (13756200).

Almost surely, 2^55006019 is an apocalyptic number.

55006019 is a deficient number, since it is larger than the sum of its proper divisors (18781).

55006019 is a wasteful number, since it uses less digits than its factorization.

55006019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18780.

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 55006019 is about 7416.6042768911. The cubic root of 55006019 is about 380.3091182797.

The spelling of 55006019 in words is "fifty-five million, six thousand, nineteen".