51520106496 has 208 divisors, whose sum is σ = 140832777600. Its totient is φ = 16745693184.

The previous prime is 51520106447. The next prime is 51520106503. The reversal of 51520106496 is 69460102515.

51520106496 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129773370 + ... + 129773766.

Almost surely, 2^51520106496 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 51520106496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70416388800).

51520106496 is an abundant number, since it is smaller than the sum of its proper divisors (89312671104).

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

51520106496 is a wasteful number, since it uses less digits than its factorization.

51520106496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 51520106496 in words is "fifty-one billion, five hundred twenty million, one hundred six thousand, four hundred ninety-six".