50817280 has 108 divisors (see below), whose sum is σ = 129415860. Its totient is φ = 19095552.

The previous prime is 50817257. The next prime is 50817307. The reversal of 50817280 is 8271805.

It can be written as a sum of positive squares in 6 ways, for example, as 7573504 + 43243776 = 2752^2 + 6576^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1373422 + ... + 1373458.

It is an arithmetic number, because the mean of its divisors is an integer number (1198295).

Almost surely, 2^50817280 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 50817280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64707930).

50817280 is an abundant number, since it is smaller than the sum of its proper divisors (78598580).

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

50817280 is an equidigital number, since it uses as much as digits as its factorization.

50817280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 50817280 is about 7128.6239906450. The cubic root of 50817280 is about 370.3995683450.

The spelling of 50817280 in words is "fifty million, eight hundred seventeen thousand, two hundred eighty".