545545871 has 16 divisors (see below), whose sum is σ = 604666944. Its totient is φ = 488934144.

The previous prime is 545545853. The next prime is 545545927. The reversal of 545545871 is 178545545.

It is a cyclic number.

It is not a de Polignac number, because 545545871 - 2²² = 541351567 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 (545515871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310331 + ... + 312083.

It is an arithmetic number, because the mean of its divisors is an integer number (37791684).

Almost surely, 2^545545871 is an apocalyptic number.

545545871 is a deficient number, since it is larger than the sum of its proper divisors (59121073).

545545871 is a wasteful number, since it uses less digits than its factorization.

545545871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450.

The product of its digits is 560000, while the sum is 44.

The square root of 545545871 is about 23356.9234061338. The cubic root of 545545871 is about 817.1035381476.

The spelling of 545545871 in words is "five hundred forty-five million, five hundred forty-five thousand, eight hundred seventy-one".