51300045200 has 30 divisors (see below), whose sum is σ = 123248359554. Its totient is φ = 20520017920.

The previous prime is 51300045179. The next prime is 51300045211. The reversal of 51300045200 is 254000315.

It can be written as a sum of positive squares in 3 ways, for example, as 649842064 + 50650203136 = 25492^2 + 225056^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64124657 + ... + 64125456.

Almost surely, 2^51300045200 is an apocalyptic number.

51300045200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51300045200 is an abundant number, since it is smaller than the sum of its proper divisors (71948314354).

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

51300045200 is a wasteful number, since it uses less digits than its factorization.

51300045200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128250131 (or 128250120 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 51300045200 its reverse (254000315), we get a palindrome (51554045515).

The spelling of 51300045200 in words is "fifty-one billion, three hundred million, forty-five thousand, two hundred".