551355432200 has 24 divisors (see below), whose sum is σ = 1281901380330. Its totient is φ = 220542172800.

The previous prime is 551355432169. The next prime is 551355432209. The reversal of 551355432200 is 2234553155.

It can be written as a sum of positive squares in 3 ways, for example, as 354189239044 + 197166193156 = 595138^2 + 444034^2 .

It is not an unprimeable number, because it can be changed into a prime (551355432209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1378388381 + ... + 1378388780.

Almost surely, 2^551355432200 is an apocalyptic number.

551355432200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

551355432200 is an abundant number, since it is smaller than the sum of its proper divisors (730545948130).

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

551355432200 is a wasteful number, since it uses less digits than its factorization.

551355432200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2756777177 (or 2756777168 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

Adding to 551355432200 its reverse (2234553155), we get a palindrome (553589985355).

The spelling of 551355432200 in words is "five hundred fifty-one billion, three hundred fifty-five million, four hundred thirty-two thousand, two hundred".