545615568 has 160 divisors (see below), whose sum is σ = 1655251200. Its totient is φ = 171730944.

The previous prime is 545615563. The next prime is 545615627. The reversal of 545615568 is 865516545.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545615563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 883996 + ... + 884612.

It is an arithmetic number, because the mean of its divisors is an integer number (10345320).

Almost surely, 2^545615568 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 545615568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (827625600).

545615568 is an abundant number, since it is smaller than the sum of its proper divisors (1109635632).

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

545615568 is a wasteful number, since it uses less digits than its factorization.

545615568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746 (or 734 counting only the distinct ones).

The product of its digits is 720000, while the sum is 45.

The square root of 545615568 is about 23358.4153572112. The cubic root of 545615568 is about 817.1383334131.

The spelling of 545615568 in words is "five hundred forty-five million, six hundred fifteen thousand, five hundred sixty-eight".