50225561616 has 160 divisors (see below), whose sum is σ = 134090723200. Its totient is φ = 16192991232.

The previous prime is 50225561597. The next prime is 50225561627. The reversal of 50225561616 is 61616552205.

It is a happy number.

It is a super-2 number, since 2×50225561616² (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 31 ways as a sum of consecutive naturals, for example, 81933726 + ... + 81934338.

It is an arithmetic number, because the mean of its divisors is an integer number (838067020).

Almost surely, 2^50225561616 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 50225561616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67045361600).

50225561616 is an abundant number, since it is smaller than the sum of its proper divisors (83865161584).

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

50225561616 is a wasteful number, since it uses less digits than its factorization.

50225561616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113 (or 1107 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 50225561616 in words is "fifty billion, two hundred twenty-five million, five hundred sixty-one thousand, six hundred sixteen".