545543519 has 2 divisors, whose sum is σ = 545543520. Its totient is φ = 545543518.

The previous prime is 545543513. The next prime is 545543539. The reversal of 545543519 is 915345545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545543519 - 2⁸ = 545543263 is a prime.

It is a super-2 number, since 2×545543519² = 595235462245806722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545543513) 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 as a sum of consecutive naturals, namely, 272771759 + 272771760.

It is an arithmetic number, because the mean of its divisors is an integer number (272771760).

Almost surely, 2^545543519 is an apocalyptic number.

545543519 is a deficient number, since it is larger than the sum of its proper divisors (1).

545543519 is an equidigital number, since it uses as much as digits as its factorization.

545543519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 270000, while the sum is 41.

The square root of 545543519 is about 23356.8730569826. The cubic root of 545543519 is about 817.1023638924.

The spelling of 545543519 in words is "five hundred forty-five million, five hundred forty-three thousand, five hundred nineteen".