50505156 has 72 divisors (see below), whose sum is σ = 138325824. Its totient is φ = 15445440.

The previous prime is 50505139. The next prime is 50505163. The reversal of 50505156 is 65150505.

50505156 is a `hidden beast` number, since 5 + 0 + 505 + 156 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145375 + ... + 145721.

It is an arithmetic number, because the mean of its divisors is an integer number (1921192).

Almost surely, 2^50505156 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 50505156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69162912).

50505156 is an abundant number, since it is smaller than the sum of its proper divisors (87820668).

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

50505156 is a wasteful number, since it uses less digits than its factorization.

50505156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 50505156 is about 7106.6979674107. The cubic root of 50505156 is about 369.6396686776.

The spelling of 50505156 in words is "fifty million, five hundred five thousand, one hundred fifty-six".