50997696552 has 224 divisors, whose sum is σ = 157390426080. Its totient is φ = 15355889280.

The previous prime is 50997696509. The next prime is 50997696571. The reversal of 50997696552 is 25569679905.

50997696552 is a `hidden beast` number, since 5 + 0 + 9 + 9 + 76 + 9 + 6 + 552 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 50997696552.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 10454338 + ... + 10459214.

Almost surely, 2^50997696552 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 50997696552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78695213040).

50997696552 is an abundant number, since it is smaller than the sum of its proper divisors (106392729528).

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

50997696552 is a wasteful number, since it uses less digits than its factorization.

50997696552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5075 (or 5056 counting only the distinct ones).

The product of its (nonzero) digits is 45927000, while the sum is 63.

The spelling of 50997696552 in words is "fifty billion, nine hundred ninety-seven million, six hundred ninety-six thousand, five hundred fifty-two".