50434432021 has 4 divisors (see below), whose sum is σ = 51386025132. Its totient is φ = 49482838912.

The previous prime is 50434432019. The next prime is 50434432033. The reversal of 50434432021 is 12023443405.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12023443405 = 5 ⋅2404688681.

It can be written as a sum of positive squares in 2 ways, for example, as 31192858225 + 19241573796 = 176615^2 + 138714^2 .

It is a cyclic number.

It is not a de Polignac number, because 50434432021 - 2¹ = 50434432019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50434432001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475796476 + ... + 475796581.

It is an arithmetic number, because the mean of its divisors is an integer number (12846506283).

Almost surely, 2^50434432021 is an apocalyptic number.

It is an amenable number.

50434432021 is a deficient number, since it is larger than the sum of its proper divisors (951593111).

50434432021 is an equidigital number, since it uses as much as digits as its factorization.

50434432021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951593110.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 50434432021 its reverse (12023443405), we get a palindrome (62457875426).

The spelling of 50434432021 in words is "fifty billion, four hundred thirty-four million, four hundred thirty-two thousand, twenty-one".