50644869 has 16 divisors (see below), whose sum is σ = 73920000. Its totient is φ = 30587760.

The previous prime is 50644849. The next prime is 50644877. The reversal of 50644869 is 96844605.

It is not a de Polignac number, because 50644869 - 2⁵ = 50644837 is a prime.

It is a super-2 number, since 2×50644869² = 5129805512054322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50644869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50644829) 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 15 ways as a sum of consecutive naturals, for example, 7632 + ... + 12630.

It is an arithmetic number, because the mean of its divisors is an integer number (4620000).

Almost surely, 2^50644869 is an apocalyptic number.

It is an amenable number.

50644869 is a deficient number, since it is larger than the sum of its proper divisors (23275131).

50644869 is a wasteful number, since it uses less digits than its factorization.

50644869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5320.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 50644869 is about 7116.5208494039. The cubic root of 50644869 is about 369.9802010345.

The spelling of 50644869 in words is "fifty million, six hundred forty-four thousand, eight hundred sixty-nine".