50979217 has 2 divisors, whose sum is σ = 50979218. Its totient is φ = 50979216.

The previous prime is 50979179. The next prime is 50979251. The reversal of 50979217 is 71297905.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25969216 + 25010001 = 5096^2 + 5001^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50979217 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50979217.

It is not a weakly prime, because it can be changed into another prime (50979287) 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 as a sum of consecutive naturals, namely, 25489608 + 25489609.

It is an arithmetic number, because the mean of its divisors is an integer number (25489609).

Almost surely, 2^50979217 is an apocalyptic number.

It is an amenable number.

50979217 is a deficient number, since it is larger than the sum of its proper divisors (1).

50979217 is an equidigital number, since it uses as much as digits as its factorization.

50979217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 40.

The square root of 50979217 is about 7139.9731792213. The cubic root of 50979217 is about 370.7925960328.

The spelling of 50979217 in words is "fifty million, nine hundred seventy-nine thousand, two hundred seventeen".