545571967 has 2 divisors, whose sum is σ = 545571968. Its totient is φ = 545571966.

The previous prime is 545571893. The next prime is 545571979. The reversal of 545571967 is 769175545.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 545571967 - 2¹¹ = 545569919 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 545571967.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545572967) 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, 272785983 + 272785984.

It is an arithmetic number, because the mean of its divisors is an integer number (272785984).

Almost surely, 2^545571967 is an apocalyptic number.

545571967 is a deficient number, since it is larger than the sum of its proper divisors (1).

545571967 is an equidigital number, since it uses as much as digits as its factorization.

545571967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1323000, while the sum is 49.

The square root of 545571967 is about 23357.4820346715. The cubic root of 545571967 is about 817.1165665625.

The spelling of 545571967 in words is "five hundred forty-five million, five hundred seventy-one thousand, nine hundred sixty-seven".