50558351616 has 54 divisors (see below), whose sum is σ = 145772198390. Its totient is φ = 16852783104.

The previous prime is 50558351609. The next prime is 50558351629. The reversal of 50558351616 is 61615385505.

50558351616 is a `hidden beast` number, since 5 + 0 + 5 + 583 + 5 + 1 + 61 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 45727545600 + 4830806016 = 213840^2 + 69504^2 .

It is a super-2 number, since 2×50558351616² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10969561 + ... + 10974168.

Almost surely, 2^50558351616 is an apocalyptic number.

It is an amenable number.

50558351616 is an abundant number, since it is smaller than the sum of its proper divisors (95213846774).

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

50558351616 is a wasteful number, since it uses less digits than its factorization.

50558351616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21943751 (or 21943734 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 45.

The spelling of 50558351616 in words is "fifty billion, five hundred fifty-eight million, three hundred fifty-one thousand, six hundred sixteen".