50831664 has 120 divisors (see below), whose sum is σ = 149105040. Its totient is φ = 14816256.

The previous prime is 50831659. The next prime is 50831687. The reversal of 50831664 is 46613805.

It is a congruent number.

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, 959062 + ... + 959114.

It is an arithmetic number, because the mean of its divisors is an integer number (1242542).

Almost surely, 2^50831664 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 50831664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74552520).

50831664 is an abundant number, since it is smaller than the sum of its proper divisors (98273376).

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

50831664 is a wasteful number, since it uses less digits than its factorization.

50831664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 50831664 is about 7129.6328096193. The cubic root of 50831664 is about 370.4345126578.

The spelling of 50831664 in words is "fifty million, eight hundred thirty-one thousand, six hundred sixty-four".