51550733600 has 36 divisors (see below), whose sum is σ = 125848230354. Its totient is φ = 20620293120.

The previous prime is 51550733579. The next prime is 51550733651. The reversal of 51550733600 is 633705515.

It can be written as a sum of positive squares in 3 ways, for example, as 37120958224 + 14429775376 = 192668^2 + 120124^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32218409 + ... + 32220008.

Almost surely, 2^51550733600 is an apocalyptic number.

51550733600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51550733600 is an abundant number, since it is smaller than the sum of its proper divisors (74297496754).

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

51550733600 is a wasteful number, since it uses less digits than its factorization.

51550733600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64438437 (or 64438424 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 35.

The spelling of 51550733600 in words is "fifty-one billion, five hundred fifty million, seven hundred thirty-three thousand, six hundred".