50520684649 has 4 divisors (see below), whose sum is σ = 51695584336. Its totient is φ = 49345784964.

The previous prime is 50520684647. The next prime is 50520684653. The reversal of 50520684649 is 94648602505.

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 not a de Polignac number, because 50520684649 - 2¹ = 50520684647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50520684647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 587449779 + ... + 587449864.

It is an arithmetic number, because the mean of its divisors is an integer number (12923896084).

Almost surely, 2^50520684649 is an apocalyptic number.

It is an amenable number.

50520684649 is a deficient number, since it is larger than the sum of its proper divisors (1174899687).

50520684649 is a wasteful number, since it uses less digits than its factorization.

50520684649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174899686.

The product of its (nonzero) digits is 2073600, while the sum is 49.

The spelling of 50520684649 in words is "fifty billion, five hundred twenty million, six hundred eighty-four thousand, six hundred forty-nine".