51061051050 has 48 divisors (see below), whose sum is σ = 126729975072. Its totient is φ = 13605681600.

The previous prime is 51061050973. The next prime is 51061051073. The reversal of 51061051050 is 5015016015.

It is a super-2 number, since 2×51061051050² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51061051050.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61812 + ... + 325488.

It is an arithmetic number, because the mean of its divisors is an integer number (2640207814).

Almost surely, 2^51061051050 is an apocalyptic number.

51061051050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51061051050 is an abundant number, since it is smaller than the sum of its proper divisors (75668924022).

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

51061051050 is a wasteful number, since it uses less digits than its factorization.

51061051050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264983 (or 264978 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 24.

Adding to 51061051050 its reverse (5015016015), we get a palindrome (56076067065).

The spelling of 51061051050 in words is "fifty-one billion, sixty-one million, fifty-one thousand, fifty".