51331434200 has 48 divisors (see below), whose sum is σ = 122256471960. Its totient is φ = 20031776000.

The previous prime is 51331434197. The next prime is 51331434211. The reversal of 51331434200 is 243413315.

It is a super-2 number, since 2×51331434200² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51331434200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3121766 + ... + 3138165.

Almost surely, 2^51331434200 is an apocalyptic number.

51331434200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51331434200 is an abundant number, since it is smaller than the sum of its proper divisors (70925037760).

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

51331434200 is a wasteful number, since it uses less digits than its factorization.

51331434200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6259988 (or 6259979 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 51331434200 its reverse (243413315), we get a palindrome (51574847515).

The spelling of 51331434200 in words is "fifty-one billion, three hundred thirty-one million, four hundred thirty-four thousand, two hundred".