545227200 has 420 divisors, whose sum is σ = 2294231632. Its totient is φ = 124416000.

The previous prime is 545227187. The next prime is 545227237. The reversal of 545227200 is 2722545.

545227200 is a `hidden beast` number, since 5 + 452 + 2 + 7 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (420).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 906900 + ... + 907500.

Almost surely, 2^545227200 is an apocalyptic number.

545227200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545227200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1147115816).

545227200 is an abundant number, since it is smaller than the sum of its proper divisors (1749004432).

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

545227200 is a wasteful number, since it uses less digits than its factorization.

545227200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 545227200 is about 23350.1006421814. The cubic root of 545227200 is about 816.9444082851.

Adding to 545227200 its reverse (2722545), we get a palindrome (547949745).

The spelling of 545227200 in words is "five hundred forty-five million, two hundred twenty-seven thousand, two hundred".