50963021 has 4 divisors (see below), whose sum is σ = 51003612. Its totient is φ = 50922432.

The previous prime is 50962987. The next prime is 50963027. The reversal of 50963021 is 12036905.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 49984900 + 978121 = 7070^2 + 989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50963021 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 (50963027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18350 + ... + 20943.

It is an arithmetic number, because the mean of its divisors is an integer number (12750903).

Almost surely, 2^50963021 is an apocalyptic number.

It is an amenable number.

50963021 is a deficient number, since it is larger than the sum of its proper divisors (40591).

50963021 is a wasteful number, since it uses less digits than its factorization.

50963021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40590.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 50963021 is about 7138.8389111956. The cubic root of 50963021 is about 370.7533251736.

Adding to 50963021 its reverse (12036905), we get a palindrome (62999926).

The spelling of 50963021 in words is "fifty million, nine hundred sixty-three thousand, twenty-one".