50554421250421 has 12 divisors (see below), whose sum is σ = 55810738276300. Its totient is φ = 45757872325440.

The previous prime is 50554421250419. The next prime is 50554421250499. The reversal of 50554421250421 is 12405212445505.

It can be written as a sum of positive squares in 2 ways, for example, as 37243496535025 + 13310924715396 = 6102745^2 + 3648414^2 .

It is not a de Polignac number, because 50554421250421 - 2¹ = 50554421250419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50554421250121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 912210576 + ... + 912265993.

Almost surely, 2^{50554421250421} is an apocalyptic number.

It is an amenable number.

50554421250421 is a deficient number, since it is larger than the sum of its proper divisors (5256317025879).

50554421250421 is a wasteful number, since it uses less digits than its factorization.

50554421250421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1824476820 (or 1824476809 counting only the distinct ones).

The product of its (nonzero) digits is 320000, while the sum is 40.

Adding to 50554421250421 its reverse (12405212445505), we get a palindrome (62959633695926).

The spelling of 50554421250421 in words is "fifty trillion, five hundred fifty-four billion, four hundred twenty-one million, two hundred fifty thousand, four hundred twenty-one".