50783021 has 4 divisors (see below), whose sum is σ = 50839200. Its totient is φ = 50726844.

The previous prime is 50782997. The next prime is 50783039. The reversal of 50783021 is 12038705.

50783021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50783021 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 (50782021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26711 + ... + 28548.

It is an arithmetic number, because the mean of its divisors is an integer number (12709800).

Almost surely, 2^50783021 is an apocalyptic number.

It is an amenable number.

50783021 is a deficient number, since it is larger than the sum of its proper divisors (56179).

50783021 is an equidigital number, since it uses as much as digits as its factorization.

50783021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56178.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 50783021 is about 7126.2206673664. The cubic root of 50783021 is about 370.3163133875.

The spelling of 50783021 in words is "fifty million, seven hundred eighty-three thousand, twenty-one".