50871018 has 64 divisors (see below), whose sum is σ = 118195200. Its totient is φ = 14434560.

The previous prime is 50871013. The next prime is 50871049. The reversal of 50871018 is 81017805.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50871013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141523 + ... + 141881.

It is an arithmetic number, because the mean of its divisors is an integer number (1846800).

Almost surely, 2^50871018 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50871018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59097600).

50871018 is an abundant number, since it is smaller than the sum of its proper divisors (67324182).

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

50871018 is a wasteful number, since it uses less digits than its factorization.

50871018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507.

The product of its (nonzero) digits is 2240, while the sum is 30.

The square root of 50871018 is about 7132.3921653257. The cubic root of 50871018 is about 370.5300851033.

It can be divided in two parts, 5087 and 1018, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 50871018 in words is "fifty million, eight hundred seventy-one thousand, eighteen".