50215006649 has 4 divisors (see below), whose sum is σ = 50236368000. Its totient is φ = 50193645300.

The previous prime is 50215006627. The next prime is 50215006651. The reversal of 50215006649 is 94660051205.

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 50215006649 - 2⁸ = 50215006393 is a prime.

It is a super-2 number, since 2×50215006649² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50215806649) 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, 10677149 + ... + 10681850.

It is an arithmetic number, because the mean of its divisors is an integer number (12559092000).

Almost surely, 2^50215006649 is an apocalyptic number.

It is an amenable number.

50215006649 is a deficient number, since it is larger than the sum of its proper divisors (21361351).

50215006649 is a wasteful number, since it uses less digits than its factorization.

50215006649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21361350.

The product of its (nonzero) digits is 64800, while the sum is 38.

The spelling of 50215006649 in words is "fifty billion, two hundred fifteen million, six thousand, six hundred forty-nine".