51902323200 has 720 divisors, whose sum is σ = 228654281856. Its totient is φ = 10948608000.

The previous prime is 51902323171. The next prime is 51902323211. The reversal of 51902323200 is 232320915.

51902323200 is a `hidden beast` number, since 51 + 90 + 2 + 323 + 200 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10480725 + ... + 10485675.

Almost surely, 2^51902323200 is an apocalyptic number.

51902323200 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 51902323200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114327140928).

51902323200 is an abundant number, since it is smaller than the sum of its proper divisors (176751958656).

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

51902323200 is a wasteful number, since it uses less digits than its factorization.

51902323200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005 (or 4981 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The spelling of 51902323200 in words is "fifty-one billion, nine hundred two million, three hundred twenty-three thousand, two hundred".