50487918 has 32 divisors (see below), whose sum is σ = 109880736. Its totient is φ = 15372288.

The previous prime is 50487911. The next prime is 50487919. The reversal of 50487918 is 81978405.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 50487918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50487911) 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, 4230 + ... + 10902.

It is an arithmetic number, because the mean of its divisors is an integer number (3433773).

Almost surely, 2^50487918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50487918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54940368).

50487918 is an abundant number, since it is smaller than the sum of its proper divisors (59392818).

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

50487918 is a wasteful number, since it uses less digits than its factorization.

50487918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6788.

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 50487918 is about 7105.4850643710. The cubic root of 50487918 is about 369.5976097791.

The spelling of 50487918 in words is "fifty million, four hundred eighty-seven thousand, nine hundred eighteen".