545261473 has 2 divisors, whose sum is σ = 545261474. Its totient is φ = 545261472.

The previous prime is 545261461. The next prime is 545261527. The reversal of 545261473 is 374162545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 526840209 + 18421264 = 22953^2 + 4292^2 .

It is a cyclic number.

It is not a de Polignac number, because 545261473 - 2⁵ = 545261441 is a prime.

It is not a weakly prime, because it can be changed into another prime (545261443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272630736 + 272630737.

It is an arithmetic number, because the mean of its divisors is an integer number (272630737).

Almost surely, 2^545261473 is an apocalyptic number.

It is an amenable number.

545261473 is a deficient number, since it is larger than the sum of its proper divisors (1).

545261473 is an equidigital number, since it uses as much as digits as its factorization.

545261473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 37.

The square root of 545261473 is about 23350.8345247017. The cubic root of 545261473 is about 816.9615256441.

The spelling of 545261473 in words is "five hundred forty-five million, two hundred sixty-one thousand, four hundred seventy-three".