506555136 has 108 divisors (see below), whose sum is σ = 1494781288. Its totient is φ = 164892672.

The previous prime is 506555129. The next prime is 506555141. The reversal of 506555136 is 631555605.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 506555136.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96516 + ... + 101628.

Almost surely, 2^506555136 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 506555136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (747390644).

506555136 is an abundant number, since it is smaller than the sum of its proper divisors (988226152).

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

506555136 is a wasteful number, since it uses less digits than its factorization.

506555136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5178 (or 5161 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

The square root of 506555136 is about 22506.7797785467. The cubic root of 506555136 is about 797.1540208425.

The spelling of 506555136 in words is "five hundred six million, five hundred fifty-five thousand, one hundred thirty-six".