50143305425521 has 16 divisors (see below), whose sum is σ = 62713541266560. Its totient is φ = 38949447761280.

The previous prime is 50143305425501. The next prime is 50143305425537. The reversal of 50143305425521 is 12552450334105.

It is not a de Polignac number, because 50143305425521 - 2³⁵ = 50108945687153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50143305425501) 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, 1027123476 + ... + 1027172293.

It is an arithmetic number, because the mean of its divisors is an integer number (3919596329160).

Almost surely, 2^{50143305425521} is an apocalyptic number.

It is an amenable number.

50143305425521 is a deficient number, since it is larger than the sum of its proper divisors (12570235841039).

50143305425521 is a wasteful number, since it uses less digits than its factorization.

50143305425521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054296104.

The product of its (nonzero) digits is 360000, while the sum is 40.

Adding to 50143305425521 its reverse (12552450334105), we get a palindrome (62695755759626).

The spelling of 50143305425521 in words is "fifty trillion, one hundred forty-three billion, three hundred five million, four hundred twenty-five thousand, five hundred twenty-one".