50021445 has 32 divisors (see below), whose sum is σ = 83543040. Its totient is φ = 25528320.

The previous prime is 50021437. The next prime is 50021467. The reversal of 50021445 is 54412005.

50021445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 50021445 - 2³ = 50021437 is a prime.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 44551 + ... + 45659.

It is an arithmetic number, because the mean of its divisors is an integer number (2610720).

Almost surely, 2^50021445 is an apocalyptic number.

It is an amenable number.

50021445 is a deficient number, since it is larger than the sum of its proper divisors (33521595).

50021445 is a wasteful number, since it uses less digits than its factorization.

50021445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 50021445 is about 7072.5840397976. The cubic root of 50021445 is about 368.4558117062.

It can be divided in two parts, 500 and 21445, that added together give a triangular number (21945 = T₂₀₉).

The spelling of 50021445 in words is "fifty million, twenty-one thousand, four hundred forty-five".