50571161212 has 24 divisors (see below), whose sum is σ = 103971479472. Its totient is φ = 21218668800.

The previous prime is 50571161177. The next prime is 50571161327. The reversal of 50571161212 is 21216117505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44204989 + ... + 44206132.

It is an arithmetic number, because the mean of its divisors is an integer number (4332144978).

Almost surely, 2^50571161212 is an apocalyptic number.

50571161212 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

50571161212 is an abundant number, since it is smaller than the sum of its proper divisors (53400318260).

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

50571161212 is a wasteful number, since it uses less digits than its factorization.

50571161212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88411149 (or 88411147 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 31.

Adding to 50571161212 its reverse (21216117505), we get a palindrome (71787278717).

The spelling of 50571161212 in words is "fifty billion, five hundred seventy-one million, one hundred sixty-one thousand, two hundred twelve".