545545959 has 64 divisors (see below), whose sum is σ = 886502400. Its totient is φ = 298045440.

The previous prime is 545545951. The next prime is 545545991. The reversal of 545545959 is 959545545.

It is a happy number.

It is not a de Polignac number, because 545545959 - 2³ = 545545951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545545951) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2826567 + ... + 2826759.

It is an arithmetic number, because the mean of its divisors is an integer number (13851600).

Almost surely, 2^545545959 is an apocalyptic number.

545545959 is a deficient number, since it is larger than the sum of its proper divisors (340956441).

545545959 is a wasteful number, since it uses less digits than its factorization.

545545959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 311 counting only the distinct ones).

The product of its digits is 4050000, while the sum is 51.

The square root of 545545959 is about 23356.9252899435. The cubic root of 545545959 is about 817.1035820823.

The spelling of 545545959 in words is "five hundred forty-five million, five hundred forty-five thousand, nine hundred fifty-nine".