51650999600 has 120 divisors (see below), whose sum is σ = 126430574592. Its totient is φ = 20274336000.

The previous prime is 51650999593. The next prime is 51650999611. The reversal of 51650999600 is 699905615.

It is a Harshad number since it is a multiple of its sum of digits (50).

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, 5008049 + ... + 5018351.

Almost surely, 2^51650999600 is an apocalyptic number.

51650999600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51650999600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63215287296).

51650999600 is an abundant number, since it is smaller than the sum of its proper divisors (74779574992).

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

51650999600 is a wasteful number, since it uses less digits than its factorization.

51650999600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10555 (or 10544 counting only the distinct ones).

The product of its (nonzero) digits is 656100, while the sum is 50.

The spelling of 51650999600 in words is "fifty-one billion, six hundred fifty million, nine hundred ninety-nine thousand, six hundred".