545585868 has 120 divisors (see below), whose sum is σ = 1487765664. Its totient is φ = 174182400.

The previous prime is 545585819. The next prime is 545585881. The reversal of 545585868 is 868585545.

545585868 is a `hidden beast` number, since 5 + 4 + 5 + 58 + 586 + 8 = 666.

It is a super-2 number, since 2×545585868² = 595327878722626848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 850828 + ... + 851468.

Almost surely, 2^545585868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545585868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (743882832).

545585868 is an abundant number, since it is smaller than the sum of its proper divisors (942179796).

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

545585868 is a wasteful number, since it uses less digits than its factorization.

545585868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765 (or 754 counting only the distinct ones).

The product of its digits is 7680000, while the sum is 54.

The square root of 545585868 is about 23357.7796033784. The cubic root of 545585868 is about 817.1235064603.

The spelling of 545585868 in words is "five hundred forty-five million, five hundred eighty-five thousand, eight hundred sixty-eight".