551201200 has 120 divisors (see below), whose sum is σ = 1529835120. Its totient is φ = 188620800.

The previous prime is 551201197. The next prime is 551201201. The reversal of 551201200 is 2102155.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (551201201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71116 + ... + 78484.

It is an arithmetic number, because the mean of its divisors is an integer number (12748626).

Almost surely, 2^551201200 is an apocalyptic number.

551201200 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 551201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (764917560).

551201200 is an abundant number, since it is smaller than the sum of its proper divisors (978633920).

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

551201200 is a wasteful number, since it uses less digits than its factorization.

551201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7415 (or 7404 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 551201200 is about 23477.6745015344. The cubic root of 551201200 is about 819.9173027846.

Adding to 551201200 its reverse (2102155), we get a palindrome (553303355).

The spelling of 551201200 in words is "five hundred fifty-one million, two hundred one thousand, two hundred".