50720039424 has 120 divisors (see below), whose sum is σ = 151103876352. Its totient is φ = 16361256960.

The previous prime is 50720039399. The next prime is 50720039431. The reversal of 50720039424 is 42493002705.

It is a super-2 number, since 2×50720039424² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34684 + ... + 320379.

Almost surely, 2^50720039424 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 50720039424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75551938176).

50720039424 is an abundant number, since it is smaller than the sum of its proper divisors (100383836928).

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

50720039424 is a wasteful number, since it uses less digits than its factorization.

50720039424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355118 (or 355099 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The spelling of 50720039424 in words is "fifty billion, seven hundred twenty million, thirty-nine thousand, four hundred twenty-four".