51051051050 has 24 divisors (see below), whose sum is σ = 94961621100. Its totient is φ = 20418986880.

The previous prime is 51051051049. The next prime is 51051051083. The reversal of 51051051050 is 5015015015.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 45670681849 + 5380369201 = 213707^2 + 73351^2 .

It is a super-2 number, since 2×51051051050² (a number of 22 digits) contains 22 as substring.

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, 954416 + ... + 1006484.

Almost surely, 2^51051051050 is an apocalyptic number.

51051051050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51051051050 is a deficient number, since it is larger than the sum of its proper divisors (43910570050).

51051051050 is a wasteful number, since it uses less digits than its factorization.

51051051050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71690 (or 71685 counting only the distinct ones).

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

Adding to 51051051050 its reverse (5015015015), we get a palindrome (56066066065).

The spelling of 51051051050 in words is "fifty-one billion, fifty-one million, fifty-one thousand, fifty".