50911686 has 96 divisors (see below), whose sum is σ = 133954560. Its totient is φ = 14288400.

The previous prime is 50911657. The next prime is 50911687. The reversal of 50911686 is 68611905.

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 50911686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50911687) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 187731 + ... + 188001.

It is an arithmetic number, because the mean of its divisors is an integer number (1395360).

Almost surely, 2^50911686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50911686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66977280).

50911686 is an abundant number, since it is smaller than the sum of its proper divisors (83042874).

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

50911686 is a wasteful number, since it uses less digits than its factorization.

50911686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 50911686 is about 7135.2425326684. The cubic root of 50911686 is about 370.6287968675.

The spelling of 50911686 in words is "fifty million, nine hundred eleven thousand, six hundred eighty-six".