50989705 has 8 divisors (see below), whose sum is σ = 65894472. Its totient is φ = 37653888.

The previous prime is 50989703. The next prime is 50989723. The reversal of 50989705 is 50798905.

It can be written as a sum of positive squares in 4 ways, for example, as 565504 + 50424201 = 752^2 + 7101^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 50989705 - 2¹ = 50989703 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50989703) 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, 392164 + ... + 392293.

It is an arithmetic number, because the mean of its divisors is an integer number (8236809).

Almost surely, 2^50989705 is an apocalyptic number.

It is an amenable number.

50989705 is a deficient number, since it is larger than the sum of its proper divisors (14904767).

50989705 is a wasteful number, since it uses less digits than its factorization.

50989705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784475.

The product of its (nonzero) digits is 113400, while the sum is 43.

The square root of 50989705 is about 7140.7075979906. The cubic root of 50989705 is about 370.8180221203.

The spelling of 50989705 in words is "fifty million, nine hundred eighty-nine thousand, seven hundred five".