50080721 has 8 divisors (see below), whose sum is σ = 52690344. Its totient is φ = 47537280.

The previous prime is 50080711. The next prime is 50080739. The reversal of 50080721 is 12708005.

It can be written as a sum of positive squares in 4 ways, for example, as 1290496 + 48790225 = 1136^2 + 6985^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50080721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50080711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14990 + ... + 18023.

It is an arithmetic number, because the mean of its divisors is an integer number (6586293).

Almost surely, 2^50080721 is an apocalyptic number.

It is an amenable number.

50080721 is a deficient number, since it is larger than the sum of its proper divisors (2609623).

50080721 is a wasteful number, since it uses less digits than its factorization.

50080721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33091.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 50080721 is about 7076.7733466602. The cubic root of 50080721 is about 368.6012957431.

Adding to 50080721 its reverse (12708005), we get a palindrome (62788726).

The spelling of 50080721 in words is "fifty million, eighty thousand, seven hundred twenty-one".