545265773 has 4 divisors (see below), whose sum is σ = 587209308. Its totient is φ = 503322240.

The previous prime is 545265739. The next prime is 545265827. The reversal of 545265773 is 377562545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 50737129 + 494528644 = 7123^2 + 22238^2 .

It is a cyclic number.

It is not a de Polignac number, because 545265773 - 2²⁴ = 528488557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545265703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20971748 + ... + 20971773.

It is an arithmetic number, because the mean of its divisors is an integer number (146802327).

Almost surely, 2^545265773 is an apocalyptic number.

It is an amenable number.

545265773 is a deficient number, since it is larger than the sum of its proper divisors (41943535).

545265773 is a wasteful number, since it uses less digits than its factorization.

545265773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41943534.

The product of its digits is 882000, while the sum is 44.

The square root of 545265773 is about 23350.9265983172. The cubic root of 545265773 is about 816.9636731919.

The spelling of 545265773 in words is "five hundred forty-five million, two hundred sixty-five thousand, seven hundred seventy-three".