545215200 has 144 divisors (see below), whose sum is σ = 1782385920. Its totient is φ = 144760320.

The previous prime is 545215193. The next prime is 545215213. The reversal of 545215200 is 2512545.

It is a happy number.

It is a super-2 number, since 2×545215200² = 594519228622080000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 880491 + ... + 881109.

It is an arithmetic number, because the mean of its divisors is an integer number (12377680).

Almost surely, 2^545215200 is an apocalyptic number.

545215200 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 545215200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (891192960).

545215200 is an abundant number, since it is smaller than the sum of its proper divisors (1237170720).

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

545215200 is a wasteful number, since it uses less digits than its factorization.

545215200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009 (or 996 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 545215200 is about 23349.8436825603. The cubic root of 545215200 is about 816.9384148174.

Adding to 545215200 its reverse (2512545), we get a palindrome (547727745).

The spelling of 545215200 in words is "five hundred forty-five million, two hundred fifteen thousand, two hundred".