50531320 has 64 divisors (see below), whose sum is σ = 130636800. Its totient is φ = 17232000.

The previous prime is 50531303. The next prime is 50531353. The reversal of 50531320 is 2313505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69921 + ... + 70639.

It is an arithmetic number, because the mean of its divisors is an integer number (2041200).

Almost surely, 2^50531320 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 50531320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65318400).

50531320 is an abundant number, since it is smaller than the sum of its proper divisors (80105480).

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

50531320 is a wasteful number, since it uses less digits than its factorization.

50531320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988 (or 984 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 50531320 is about 7108.5385277144. The cubic root of 50531320 is about 369.7034877902.

Adding to 50531320 its reverse (2313505), we get a palindrome (52844825).

The spelling of 50531320 in words is "fifty million, five hundred thirty-one thousand, three hundred twenty".