51650115050 has 24 divisors (see below), whose sum is σ = 99381948300. Its totient is φ = 19947630080.

The previous prime is 51650115031. The next prime is 51650115107. The reversal of 51650115050 is 5051105615.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 17358853009 + 34291262041 = 131753^2 + 185179^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

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 11 ways as a sum of consecutive naturals, for example, 17808935 + ... + 17811834.

Almost surely, 2^51650115050 is an apocalyptic number.

51650115050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51650115050 is a deficient number, since it is larger than the sum of its proper divisors (47731833250).

51650115050 is a wasteful number, since it uses less digits than its factorization.

51650115050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35620810 (or 35620805 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 29.

The spelling of 51650115050 in words is "fifty-one billion, six hundred fifty million, one hundred fifteen thousand, fifty".