50505012 has 48 divisors (see below), whose sum is σ = 131671680. Its totient is φ = 16740864.

The previous prime is 50504999. The next prime is 50505017. The reversal of 50505012 is 21050505.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50505017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19633 + ... + 22055.

It is an arithmetic number, because the mean of its divisors is an integer number (2743160).

Almost surely, 2^50505012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50505012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65835840).

50505012 is an abundant number, since it is smaller than the sum of its proper divisors (81166668).

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

50505012 is a wasteful number, since it uses less digits than its factorization.

50505012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629 (or 2621 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 18.

The square root of 50505012 is about 7106.6878361161. The cubic root of 50505012 is about 369.6393173724.

Adding to 50505012 its reverse (21050505), we get a palindrome (71555517).

The spelling of 50505012 in words is "fifty million, five hundred five thousand, twelve".