50821500 has 96 divisors (see below), whose sum is σ = 156776256. Its totient is φ = 12748800.

The previous prime is 50821487. The next prime is 50821549. The reversal of 50821500 is 512805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24504 + ... + 26496.

It is an arithmetic number, because the mean of its divisors is an integer number (1633086).

Almost surely, 2^50821500 is an apocalyptic number.

50821500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50821500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78388128).

50821500 is an abundant number, since it is smaller than the sum of its proper divisors (105954756).

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

50821500 is a wasteful number, since it uses less digits than its factorization.

50821500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032 (or 2020 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 50821500 is about 7128.9199743019. The cubic root of 50821500 is about 370.4098210446.

The spelling of 50821500 in words is "fifty million, eight hundred twenty-one thousand, five hundred".