51550550050 has 12 divisors (see below), whose sum is σ = 95884023186. Its totient is φ = 20620220000.

The previous prime is 51550550047. The next prime is 51550550057. The reversal of 51550550050 is 5005505515.

It can be written as a sum of positive squares in 3 ways, for example, as 47715596721 + 3834953329 = 218439^2 + 61927^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51550549994 and 51550550021.

It is not an unprimeable number, because it can be changed into a prime (51550550057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 515505451 + ... + 515505550.

Almost surely, 2^51550550050 is an apocalyptic number.

51550550050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51550550050 is a deficient number, since it is larger than the sum of its proper divisors (44333473136).

51550550050 is a wasteful number, since it uses less digits than its factorization.

51550550050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031011013 (or 1031011008 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 31.

The spelling of 51550550050 in words is "fifty-one billion, five hundred fifty million, five hundred fifty thousand, fifty".