545890473 has 12 divisors (see below), whose sum is σ = 800278128. Its totient is φ = 358494840.

The previous prime is 545890453. The next prime is 545890481. The reversal of 545890473 is 374098545.

It is not a de Polignac number, because 545890473 - 2⁶ = 545890409 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (545890453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 452043 + ... + 453248.

It is an arithmetic number, because the mean of its divisors is an integer number (66689844).

Almost surely, 2^545890473 is an apocalyptic number.

It is an amenable number.

545890473 is a deficient number, since it is larger than the sum of its proper divisors (254387655).

545890473 is a wasteful number, since it uses less digits than its factorization.

545890473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905364 (or 905361 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 545890473 is about 23364.2991121069. The cubic root of 545890473 is about 817.2755470547.

The spelling of 545890473 in words is "five hundred forty-five million, eight hundred ninety thousand, four hundred seventy-three".