50661445 has 16 divisors (see below), whose sum is σ = 65944368. Its totient is φ = 37212160.

The previous prime is 50661437. The next prime is 50661449. The reversal of 50661445 is 54416605.

It can be written as a sum of positive squares in 8 ways, for example, as 5731236 + 44930209 = 2394^2 + 6703^2 .

It is not a de Polignac number, because 50661445 - 2³ = 50661437 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 (50661449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3784 + ... + 10753.

It is an arithmetic number, because the mean of its divisors is an integer number (4121523).

Almost surely, 2^50661445 is an apocalyptic number.

It is an amenable number.

50661445 is a deficient number, since it is larger than the sum of its proper divisors (15282923).

50661445 is a wasteful number, since it uses less digits than its factorization.

50661445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14600.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 50661445 is about 7117.6853681516. The cubic root of 50661445 is about 370.0205613117.

The spelling of 50661445 in words is "fifty million, six hundred sixty-one thousand, four hundred forty-five".