50987844 has 18 divisors (see below), whose sum is σ = 128886030. Its totient is φ = 16995936.

The previous prime is 50987843. The next prime is 50987863. The reversal of 50987844 is 44878905.

It can be written as a sum of positive squares in only one way, i.e., 25887744 + 25100100 = 5088^2 + 5010^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 50987844.

It is not an unprimeable number, because it can be changed into a prime (50987843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 708129 + ... + 708200.

It is an arithmetic number, because the mean of its divisors is an integer number (7160335).

Almost surely, 2^50987844 is an apocalyptic number.

It is an amenable number.

50987844 is an abundant number, since it is smaller than the sum of its proper divisors (77898186).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50987844 is a wasteful number, since it uses less digits than its factorization.

50987844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416339 (or 1416334 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 50987844 is about 7140.5772875868. The cubic root of 50987844 is about 370.8135107473.

The spelling of 50987844 in words is "fifty million, nine hundred eighty-seven thousand, eight hundred forty-four".