50650131521 has 16 divisors (see below), whose sum is σ = 55511568000. Its totient is φ = 45832012800.

The previous prime is 50650131481. The next prime is 50650131563. The reversal of 50650131521 is 12513105605.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50650131521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50650131821) 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, 2067140 + ... + 2091498.

It is an arithmetic number, because the mean of its divisors is an integer number (3469473000).

Almost surely, 2^50650131521 is an apocalyptic number.

It is an amenable number.

50650131521 is a deficient number, since it is larger than the sum of its proper divisors (4861436479).

50650131521 is a wasteful number, since it uses less digits than its factorization.

50650131521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25240.

The product of its (nonzero) digits is 4500, while the sum is 29.

The spelling of 50650131521 in words is "fifty billion, six hundred fifty million, one hundred thirty-one thousand, five hundred twenty-one".