50543440 has 40 divisors (see below), whose sum is σ = 117894240. Its totient is φ = 20151936.

The previous prime is 50543411. The next prime is 50543459. The reversal of 50543440 is 4434505.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 29487 + ... + 31153.

It is an arithmetic number, because the mean of its divisors is an integer number (2947356).

Almost surely, 2^50543440 is an apocalyptic number.

It is an amenable number.

50543440 is an abundant number, since it is smaller than the sum of its proper divisors (67350800).

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

50543440 is a wasteful number, since it uses less digits than its factorization.

50543440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2059 (or 2053 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 50543440 is about 7109.3909725095. The cubic root of 50543440 is about 369.7330433746.

Adding to 50543440 its reverse (4434505), we get a palindrome (54977945).

The spelling of 50543440 in words is "fifty million, five hundred forty-three thousand, four hundred forty".