50331649 has 4 divisors (see below), whose sum is σ = 51156820. Its totient is φ = 49506480.

The previous prime is 50331599. The next prime is 50331653. The reversal of 50331649 is 94613305.

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 25401600 + 24930049 = 5040^2 + 4993^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50331649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50331649.

It is not an unprimeable number, because it can be changed into a prime (50331049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412494 + ... + 412615.

It is an arithmetic number, because the mean of its divisors is an integer number (12789205).

It is a Proth number, since it is equal to 3 ⋅ 2²⁴ + 1 and 3 < 2²⁴.

Almost surely, 2^50331649 is an apocalyptic number.

It is an amenable number.

50331649 is a deficient number, since it is larger than the sum of its proper divisors (825171).

50331649 is an equidigital number, since it uses as much as digits as its factorization.

50331649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825170.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 50331649 is about 7094.4801782794. The cubic root of 50331649 is about 369.2158924439.

The spelling of 50331649 in words is "fifty million, three hundred thirty-one thousand, six hundred forty-nine".