51452520320 has 256 divisors, whose sum is σ = 133183733760. Its totient is φ = 18966528000.

The previous prime is 51452520313. The next prime is 51452520347. The reversal of 51452520320 is 2302525415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34977185 + ... + 34978655.

It is an arithmetic number, because the mean of its divisors is an integer number (520248960).

Almost surely, 2^51452520320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51452520320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66591866880).

51452520320 is an abundant number, since it is smaller than the sum of its proper divisors (81731213440).

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

51452520320 is a wasteful number, since it uses less digits than its factorization.

51452520320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605 (or 1593 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 51452520320 in words is "fifty-one billion, four hundred fifty-two million, five hundred twenty thousand, three hundred twenty".