54555019 has 2 divisors, whose sum is σ = 54555020. Its totient is φ = 54555018.

The previous prime is 54555001. The next prime is 54555041. The reversal of 54555019 is 91055545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54555019 - 2⁷ = 54554891 is a prime.

It is a super-2 number, since 2×54555019² = 5952500196180722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54555079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27277509 + 27277510.

It is an arithmetic number, because the mean of its divisors is an integer number (27277510).

Almost surely, 2^54555019 is an apocalyptic number.

54555019 is a deficient number, since it is larger than the sum of its proper divisors (1).

54555019 is an equidigital number, since it uses as much as digits as its factorization.

54555019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22500, while the sum is 34.

The square root of 54555019 is about 7386.1369470109. The cubic root of 54555019 is about 379.2668667170.

The spelling of 54555019 in words is "fifty-four million, five hundred fifty-five thousand, nineteen".