545717688 has 64 divisors (see below), whose sum is σ = 1430058240. Its totient is φ = 173209344.

The previous prime is 545717681. The next prime is 545717693. The reversal of 545717688 is 886717545.

It is a happy number.

545717688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 545717688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545717681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126495 + ... + 130737.

It is an arithmetic number, because the mean of its divisors is an integer number (22344660).

Almost surely, 2^545717688 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 545717688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (715029120).

545717688 is an abundant number, since it is smaller than the sum of its proper divisors (884340552).

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

545717688 is a wasteful number, since it uses less digits than its factorization.

545717688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4508 (or 4504 counting only the distinct ones).

The product of its digits is 1881600, while the sum is 51.

The square root of 545717688 is about 23360.6011908940. The cubic root of 545717688 is about 817.1893100628.

The spelling of 545717688 in words is "five hundred forty-five million, seven hundred seventeen thousand, six hundred eighty-eight".