50305021 has 8 divisors (see below), whose sum is σ = 54230904. Its totient is φ = 46387200.

The previous prime is 50305019. The next prime is 50305051. The reversal of 50305021 is 12050305.

It can be written as a sum of positive squares in 4 ways, for example, as 29702500 + 20602521 = 5450^2 + 4539^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50305021 - 2¹ = 50305019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50304986 and 50305004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50305051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19605 + ... + 22021.

It is an arithmetic number, because the mean of its divisors is an integer number (6778863).

Almost surely, 2^50305021 is an apocalyptic number.

It is an amenable number.

50305021 is a deficient number, since it is larger than the sum of its proper divisors (3925883).

50305021 is a wasteful number, since it uses less digits than its factorization.

50305021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4031.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 50305021 is about 7092.6032597347. The cubic root of 50305021 is about 369.1507696350.

Adding to 50305021 its reverse (12050305), we get a palindrome (62355326).

The spelling of 50305021 in words is "fifty million, three hundred five thousand, twenty-one".