50302253021 has 4 divisors (see below), whose sum is σ = 52036813500. Its totient is φ = 48567692544.

The previous prime is 50302252927. The next prime is 50302253047. The reversal of 50302253021 is 12035220305.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12035220305 = 5 ⋅2407044061.

It can be written as a sum of positive squares in 2 ways, for example, as 33714100996 + 16588152025 = 183614^2 + 128795^2 .

It is a cyclic number.

It is not a de Polignac number, because 50302253021 - 2²² = 50298058717 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 (50302253081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 867280196 + ... + 867280253.

It is an arithmetic number, because the mean of its divisors is an integer number (13009203375).

Almost surely, 2^50302253021 is an apocalyptic number.

It is an amenable number.

50302253021 is a deficient number, since it is larger than the sum of its proper divisors (1734560479).

50302253021 is a wasteful number, since it uses less digits than its factorization.

50302253021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1734560478.

The product of its (nonzero) digits is 1800, while the sum is 23.

Adding to 50302253021 its reverse (12035220305), we get a palindrome (62337473326).

The spelling of 50302253021 in words is "fifty billion, three hundred two million, two hundred fifty-three thousand, twenty-one".