50500649 has 4 divisors (see below), whose sum is σ = 50645700. Its totient is φ = 50355600.

The previous prime is 50500609. The next prime is 50500657. The reversal of 50500649 is 94600505.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94600505 = 5 ⋅18920101.

It can be written as a sum of positive squares in 2 ways, for example, as 30858025 + 19642624 = 5555^2 + 4432^2 .

It is a cyclic number.

It is not a de Polignac number, because 50500649 - 2⁸ = 50500393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50500609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72002 + ... + 72699.

It is an arithmetic number, because the mean of its divisors is an integer number (12661425).

Almost surely, 2^50500649 is an apocalyptic number.

It is an amenable number.

50500649 is a deficient number, since it is larger than the sum of its proper divisors (145051).

50500649 is a wasteful number, since it uses less digits than its factorization.

50500649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145050.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 50500649 is about 7106.3808651099. The cubic root of 50500649 is about 369.6286729979.

The spelling of 50500649 in words is "fifty million, five hundred thousand, six hundred forty-nine".