543055905 has 48 divisors (see below), whose sum is σ = 1139059584. Its totient is φ = 233648640.

The previous prime is 543055859. The next prime is 543055949. The reversal of 543055905 is 509550345.

It is not a de Polignac number, because 543055905 - 2⁹ = 543055393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 543055905.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45351 + ... + 56060.

It is an arithmetic number, because the mean of its divisors is an integer number (23730408).

Almost surely, 2^543055905 is an apocalyptic number.

It is an amenable number.

543055905 is an abundant number, since it is smaller than the sum of its proper divisors (596003679).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

543055905 is a wasteful number, since it uses less digits than its factorization.

543055905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101446 (or 101443 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The square root of 543055905 is about 23303.5599211794. The cubic root of 543055905 is about 815.8585079426.

The spelling of 543055905 in words is "five hundred forty-three million, fifty-five thousand, nine hundred five".