50515406212 has 6 divisors (see below), whose sum is σ = 88401960878. Its totient is φ = 25257703104.

The previous prime is 50515406203. The next prime is 50515406231. The reversal of 50515406212 is 21260451505.

It can be written as a sum of positive squares in only one way, i.e., 49807526976 + 707879236 = 223176^2 + 26606^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6314425773 + ... + 6314425780.

Almost surely, 2^50515406212 is an apocalyptic number.

It is an amenable number.

50515406212 is a deficient number, since it is larger than the sum of its proper divisors (37886554666).

50515406212 is a wasteful number, since it uses less digits than its factorization.

50515406212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12628851557 (or 12628851555 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 50515406212 its reverse (21260451505), we get a palindrome (71775857717).

The spelling of 50515406212 in words is "fifty billion, five hundred fifteen million, four hundred six thousand, two hundred twelve".