545218560 has 448 divisors, whose sum is σ = 2123236800. Its totient is φ = 132120576.

The previous prime is 545218523. The next prime is 545218573. The reversal of 545218560 is 65812545.

545218560 is a `hidden beast` number, since 54 + 521 + 85 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18800626 + ... + 18800654.

Almost surely, 2^545218560 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 545218560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1061618400).

545218560 is an abundant number, since it is smaller than the sum of its proper divisors (1578018240).

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

545218560 is a wasteful number, since it uses less digits than its factorization.

545218560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 36.

The square root of 545218560 is about 23349.9156315392. The cubic root of 545218560 is about 816.9400929973.

The spelling of 545218560 in words is "five hundred forty-five million, two hundred eighteen thousand, five hundred sixty".