50031280 has 80 divisors (see below), whose sum is σ = 127179360. Its totient is φ = 18192384.

The previous prime is 50031277. The next prime is 50031281. The reversal of 50031280 is 8213005.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50031281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75591 + ... + 76249.

It is an arithmetic number, because the mean of its divisors is an integer number (1589742).

Almost surely, 2^50031280 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 50031280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63589680).

50031280 is an abundant number, since it is smaller than the sum of its proper divisors (77148080).

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

50031280 is a wasteful number, since it uses less digits than its factorization.

50031280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 50031280 is about 7073.2792960550. The cubic root of 50031280 is about 368.4799581860.

Adding to 50031280 its reverse (8213005), we get a palindrome (58244285).

The spelling of 50031280 in words is "fifty million, thirty-one thousand, two hundred eighty".