50447280 has 320 divisors, whose sum is σ = 189987840. Its totient is φ = 10948608.

The previous prime is 50447263. The next prime is 50447281. The reversal of 50447280 is 8274405.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50447281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1363422 + ... + 1363458.

It is an arithmetic number, because the mean of its divisors is an integer number (593712).

Almost surely, 2^50447280 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 50447280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94993920).

50447280 is an abundant number, since it is smaller than the sum of its proper divisors (139540560).

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

50447280 is a wasteful number, since it uses less digits than its factorization.

50447280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 50447280 is about 7102.6248669066. The cubic root of 50447280 is about 369.4984194522.

The spelling of 50447280 in words is "fifty million, four hundred forty-seven thousand, two hundred eighty".