545875019 has 2 divisors, whose sum is σ = 545875020. Its totient is φ = 545875018.

The previous prime is 545875013. The next prime is 545875079. The reversal of 545875019 is 910578545.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545875019 is a prime.

It is a super-2 number, since 2×545875019² = 595959072736500722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (545875013) 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, 272937509 + 272937510.

It is an arithmetic number, because the mean of its divisors is an integer number (272937510).

Almost surely, 2^545875019 is an apocalyptic number.

545875019 is a deficient number, since it is larger than the sum of its proper divisors (1).

545875019 is an equidigital number, since it uses as much as digits as its factorization.

545875019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252000, while the sum is 44.

The square root of 545875019 is about 23363.9683915212. The cubic root of 545875019 is about 817.2678347045.

The spelling of 545875019 in words is "five hundred forty-five million, eight hundred seventy-five thousand, nineteen".