545590818 has 24 divisors (see below), whose sum is σ = 1202151600. Its totient is φ = 178780824.

The previous prime is 545590817. The next prime is 545590847. The reversal of 545590818 is 818095545.

It is a happy number.

545590818 is a `hidden beast` number, since 5 + 45 + 590 + 8 + 18 = 666.

It is not an unprimeable number, because it can be changed into a prime (545590811) 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, 255808 + ... + 257931.

It is an arithmetic number, because the mean of its divisors is an integer number (50089650).

Almost surely, 2^545590818 is an apocalyptic number.

545590818 is an abundant number, since it is smaller than the sum of its proper divisors (656560782).

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

545590818 is a wasteful number, since it uses less digits than its factorization.

545590818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513806 (or 513803 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 45.

The square root of 545590818 is about 23357.8855635522. The cubic root of 545590818 is about 817.1259776564.

The spelling of 545590818 in words is "five hundred forty-five million, five hundred ninety thousand, eight hundred eighteen".