50717890 has 8 divisors (see below), whose sum is σ = 91292220. Its totient is φ = 20287152.

The previous prime is 50717881. The next prime is 50717899. The reversal of 50717890 is 9871705.

It is an interprime number because it is at equal distance from previous prime (50717881) and next prime (50717899).

It can be written as a sum of positive squares in 2 ways, for example, as 50027329 + 690561 = 7073^2 + 831^2 .

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

It is not an unprimeable number, because it can be changed into a prime (50717899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2535885 + ... + 2535904.

Almost surely, 2^50717890 is an apocalyptic number.

50717890 is a deficient number, since it is larger than the sum of its proper divisors (40574330).

50717890 is a wasteful number, since it uses less digits than its factorization.

50717890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5071796.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 50717890 is about 7121.6493876068. The cubic root of 50717890 is about 370.1579311180.

The spelling of 50717890 in words is "fifty million, seven hundred seventeen thousand, eight hundred ninety".