551663200 has 216 divisors, whose sum is σ = 1527324120. Its totient is φ = 194304000.

The previous prime is 551663131. The next prime is 551663213. The reversal of 551663200 is 2366155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3968731 + ... + 3968869.

It is an arithmetic number, because the mean of its divisors is an integer number (7070945).

Almost surely, 2^551663200 is an apocalyptic number.

551663200 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 551663200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (763662060).

551663200 is an abundant number, since it is smaller than the sum of its proper divisors (975660920).

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

551663200 is a wasteful number, since it uses less digits than its factorization.

551663200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 551663200 is about 23487.5115753032. The cubic root of 551663200 is about 820.1463153543.

The spelling of 551663200 in words is "five hundred fifty-one million, six hundred sixty-three thousand, two hundred".