545331511 has 2 divisors, whose sum is σ = 545331512. Its totient is φ = 545331510.

The previous prime is 545331503. The next prime is 545331533. The reversal of 545331511 is 115133545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545331511 - 2³ = 545331503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545331511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545331551) 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, 272665755 + 272665756.

It is an arithmetic number, because the mean of its divisors is an integer number (272665756).

Almost surely, 2^545331511 is an apocalyptic number.

545331511 is a deficient number, since it is larger than the sum of its proper divisors (1).

545331511 is an equidigital number, since it uses as much as digits as its factorization.

545331511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4500, while the sum is 28.

The square root of 545331511 is about 23352.3341659886. The cubic root of 545331511 is about 816.9965032982.

The spelling of 545331511 in words is "five hundred forty-five million, three hundred thirty-one thousand, five hundred eleven".