50577649 has 4 divisors (see below), whose sum is σ = 50765940. Its totient is φ = 50389360.

The previous prime is 50577613. The next prime is 50577661. The reversal of 50577649 is 94677505.

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 21762225 + 28815424 = 4665^2 + 5368^2 .

It is a cyclic number.

It is not a de Polignac number, because 50577649 - 2⁷ = 50577521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50577749) 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, 93742 + ... + 94279.

It is an arithmetic number, because the mean of its divisors is an integer number (12691485).

Almost surely, 2^50577649 is an apocalyptic number.

It is an amenable number.

50577649 is a deficient number, since it is larger than the sum of its proper divisors (188291).

50577649 is a wasteful number, since it uses less digits than its factorization.

50577649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188290.

The product of its (nonzero) digits is 264600, while the sum is 43.

The square root of 50577649 is about 7111.7964678413. The cubic root of 50577649 is about 369.8164392628.

The spelling of 50577649 in words is "fifty million, five hundred seventy-seven thousand, six hundred forty-nine".