51822520200 has 1152 divisors, whose sum is σ = 210586521600. Its totient is φ = 11726208000.

The previous prime is 51822520199. The next prime is 51822520223. The reversal of 51822520200 is 202522815.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 878347771 + ... + 878347829.

It is an arithmetic number, because the mean of its divisors is an integer number (182800800).

Almost surely, 2^51822520200 is an apocalyptic number.

51822520200 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 51822520200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105293260800).

51822520200 is an abundant number, since it is smaller than the sum of its proper divisors (158764001400).

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

51822520200 is a wasteful number, since it uses less digits than its factorization.

51822520200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The spelling of 51822520200 in words is "fifty-one billion, eight hundred twenty-two million, five hundred twenty thousand, two hundred".