51505110050 has 24 divisors (see below), whose sum is σ = 95805698772. Its totient is φ = 20600712000.

The previous prime is 51505110047. The next prime is 51505110061. The reversal of 51505110050 is 5001150515.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 71859529 + 51433250521 = 8477^2 + 226789^2 .

It is a super-2 number, since 2×51505110050² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51505109998 and 51505110025.

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, 1199960 + ... + 1242140.

Almost surely, 2^51505110050 is an apocalyptic number.

51505110050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51505110050 is a deficient number, since it is larger than the sum of its proper divisors (44300588722).

51505110050 is a wasteful number, since it uses less digits than its factorization.

51505110050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66614 (or 66609 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 23.

Adding to 51505110050 its reverse (5001150515), we get a palindrome (56506260565).

The spelling of 51505110050 in words is "fifty-one billion, five hundred five million, one hundred ten thousand, fifty".