50421044134521 has 6 divisors (see below), whose sum is σ = 72830397083210. Its totient is φ = 33614029423008.

The previous prime is 50421044134499. The next prime is 50421044134547. The reversal of 50421044134521 is 12543144012405.

50421044134521 is a `hidden beast` number, since 5 + 0 + 4 + 210 + 4 + 413 + 4 + 5 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27132264170496 + 23288779964025 = 5208864^2 + 4825845^2 .

It is not a de Polignac number, because 50421044134521 - 2³¹ = 50418896650873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50421044132521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2801169118576 + ... + 2801169118593.

Almost surely, 2^{50421044134521} is an apocalyptic number.

It is an amenable number.

50421044134521 is a deficient number, since it is larger than the sum of its proper divisors (22409352948689).

50421044134521 is a wasteful number, since it uses less digits than its factorization.

50421044134521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5602338237175 (or 5602338237172 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 50421044134521 its reverse (12543144012405), we get a palindrome (62964188146926).

The spelling of 50421044134521 in words is "fifty trillion, four hundred twenty-one billion, forty-four million, one hundred thirty-four thousand, five hundred twenty-one".