51505342200 has 144 divisors (see below), whose sum is σ = 186277738920. Its totient is φ = 12678232320.

The previous prime is 51505342157. The next prime is 51505342201. The reversal of 51505342200 is 224350515.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51505342201) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1077142 + ... + 1123941.

Almost surely, 2^51505342200 is an apocalyptic number.

51505342200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51505342200 is an abundant number, since it is smaller than the sum of its proper divisors (134772396720).

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

51505342200 is a wasteful number, since it uses less digits than its factorization.

51505342200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2201118 (or 2201106 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 51505342200 its reverse (224350515), we get a palindrome (51729692715).

The spelling of 51505342200 in words is "fifty-one billion, five hundred five million, three hundred forty-two thousand, two hundred".