545525568 has 168 divisors, whose sum is σ = 1881347520. Its totient is φ = 147640320.

The previous prime is 545525567. The next prime is 545525581. The reversal of 545525568 is 865525545.

545525568 is a `hidden beast` number, since 5 + 45 + 52 + 556 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545525567) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73048 + ... + 80168.

Almost surely, 2^545525568 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 545525568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (940673760).

545525568 is an abundant number, since it is smaller than the sum of its proper divisors (1335821952).

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

545525568 is a wasteful number, since it uses less digits than its factorization.

545525568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7165 (or 7152 counting only the distinct ones).

The product of its digits is 1200000, while the sum is 45.

The square root of 545525568 is about 23356.4887772114. The cubic root of 545525568 is about 817.0934015976.

The spelling of 545525568 in words is "five hundred forty-five million, five hundred twenty-five thousand, five hundred sixty-eight".