51001060650 has 144 divisors (see below), whose sum is σ = 136049432160. Its totient is φ = 12608784000.

The previous prime is 51001060633. The next prime is 51001060661. The reversal of 51001060650 is 5606010015.

It is a super-2 number, since 2×51001060650² (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 51001060650.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6291600 + ... + 6299700.

Almost surely, 2^51001060650 is an apocalyptic number.

51001060650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51001060650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68024716080).

51001060650 is an abundant number, since it is smaller than the sum of its proper divisors (85048371510).

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

51001060650 is a wasteful number, since it uses less digits than its factorization.

51001060650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8229 (or 8177 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 51001060650 its reverse (5606010015), we get a palindrome (56607070665).

The spelling of 51001060650 in words is "fifty-one billion, one million, sixty thousand, six hundred fifty".