545390683 has 2 divisors, whose sum is σ = 545390684. Its totient is φ = 545390682.

The previous prime is 545390669. The next prime is 545390707. The reversal of 545390683 is 386093545.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545390683 is a prime.

It is not a weakly prime, because it can be changed into another prime (545390603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272695341 + 272695342.

It is an arithmetic number, because the mean of its divisors is an integer number (272695342).

Almost surely, 2^545390683 is an apocalyptic number.

545390683 is a deficient number, since it is larger than the sum of its proper divisors (1).

545390683 is an equidigital number, since it uses as much as digits as its factorization.

545390683 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 43.

The square root of 545390683 is about 23353.6010713551. The cubic root of 545390683 is about 817.0260520331.

The spelling of 545390683 in words is "five hundred forty-five million, three hundred ninety thousand, six hundred eighty-three".