545250073 has 2 divisors, whose sum is σ = 545250074. Its totient is φ = 545250072.

The previous prime is 545250071. The next prime is 545250091. The reversal of 545250073 is 370052545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 380718144 + 164531929 = 19512^2 + 12827^2 .

It is a cyclic number.

It is not a de Polignac number, because 545250073 - 2¹ = 545250071 is a prime.

Together with 545250071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (545250071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272625036 + 272625037.

It is an arithmetic number, because the mean of its divisors is an integer number (272625037).

Almost surely, 2^545250073 is an apocalyptic number.

It is an amenable number.

545250073 is a deficient number, since it is larger than the sum of its proper divisors (1).

545250073 is an equidigital number, since it uses as much as digits as its factorization.

545250073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 545250073 is about 23350.5904208009. The cubic root of 545250073 is about 816.9558320904.

The spelling of 545250073 in words is "five hundred forty-five million, two hundred fifty thousand, seventy-three".