50002145872 has 80 divisors (see below), whose sum is σ = 116720386560. Its totient is φ = 20271309696.

The previous prime is 50002145819. The next prime is 50002145899. The reversal of 50002145872 is 27854120005.

It is a happy number.

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, 1436223 + ... + 1470625.

It is an arithmetic number, because the mean of its divisors is an integer number (1459004832).

Almost surely, 2^50002145872 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 50002145872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58360193280).

50002145872 is an abundant number, since it is smaller than the sum of its proper divisors (66718240688).

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

50002145872 is a wasteful number, since it uses less digits than its factorization.

50002145872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35120 (or 35114 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 34.

Adding to 50002145872 its reverse (27854120005), we get a palindrome (77856265877).

The spelling of 50002145872 in words is "fifty billion, two million, one hundred forty-five thousand, eight hundred seventy-two".