50561216506 has 8 divisors (see below), whose sum is σ = 75851131104. Its totient is φ = 25277506140.

The previous prime is 50561216423. The next prime is 50561216513. The reversal of 50561216506 is 60561216505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×50561216506² (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 3 ways as a sum of consecutive naturals, for example, 1530630 + ... + 1563313.

It is an arithmetic number, because the mean of its divisors is an integer number (9481391388).

Almost surely, 2^50561216506 is an apocalyptic number.

50561216506 is a deficient number, since it is larger than the sum of its proper divisors (25289914598).

50561216506 is a wasteful number, since it uses less digits than its factorization.

50561216506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102116.

The product of its (nonzero) digits is 54000, while the sum is 37.

Subtracting 50561216506 from its reverse (60561216505), we obtain a palindrome (9999999999).

The spelling of 50561216506 in words is "fifty billion, five hundred sixty-one million, two hundred sixteen thousand, five hundred six".