50211421 has 12 divisors (see below), whose sum is σ = 57572532. Its totient is φ = 43620096.

The previous prime is 50211409. The next prime is 50211439. The reversal of 50211421 is 12411205.

It can be written as a sum of positive squares in 6 ways, for example, as 11148921 + 39062500 = 3339^2 + 6250^2 .

It is not a de Polignac number, because 50211421 - 2¹¹ = 50209373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50211395 and 50211404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50211451) 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, 5866 + ... + 11611.

It is an arithmetic number, because the mean of its divisors is an integer number (4797711).

Almost surely, 2^50211421 is an apocalyptic number.

It is an amenable number.

50211421 is a deficient number, since it is larger than the sum of its proper divisors (7361111).

50211421 is a wasteful number, since it uses less digits than its factorization.

50211421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17520 (or 17507 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 50211421 is about 7086.0017640416. The cubic root of 50211421 is about 368.9216741189.

Adding to 50211421 its reverse (12411205), we get a palindrome (62622626).

The spelling of 50211421 in words is "fifty million, two hundred eleven thousand, four hundred twenty-one".