50611216521 has 16 divisors (see below), whose sum is σ = 67914288000. Its totient is φ = 33525159168.

The previous prime is 50611216501. The next prime is 50611216531. The reversal of 50611216521 is 12561211605.

It is not a de Polignac number, because 50611216521 - 2¹¹ = 50611214473 is a prime.

It is a super-2 number, since 2×50611216521² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50611216501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213505 + ... + 383153.

It is an arithmetic number, because the mean of its divisors is an integer number (4244643000).

Almost surely, 2^50611216521 is an apocalyptic number.

It is an amenable number.

50611216521 is a deficient number, since it is larger than the sum of its proper divisors (17303071479).

50611216521 is a wasteful number, since it uses less digits than its factorization.

50611216521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170288.

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 50611216521 in words is "fifty billion, six hundred eleven million, two hundred sixteen thousand, five hundred twenty-one".