545222507 has 2 divisors, whose sum is σ = 545222508. Its totient is φ = 545222506.

The previous prime is 545222471. The next prime is 545222549. The reversal of 545222507 is 705222545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 545222507 - 2⁶ = 545222443 is a prime.

It is not a weakly prime, because it can be changed into another prime (545221507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272611253 + 272611254.

It is an arithmetic number, because the mean of its divisors is an integer number (272611254).

Almost surely, 2^545222507 is an apocalyptic number.

545222507 is a deficient number, since it is larger than the sum of its proper divisors (1).

545222507 is an equidigital number, since it uses as much as digits as its factorization.

545222507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28000, while the sum is 32.

The square root of 545222507 is about 23350.0001498929. Note that the first 3 decimals coincide. The cubic root of 545222507 is about 816.9420643503.

The spelling of 545222507 in words is "five hundred forty-five million, two hundred twenty-two thousand, five hundred seven".