516216241 has 2 divisors, whose sum is σ = 516216242. Its totient is φ = 516216240.

The previous prime is 516216227. The next prime is 516216277. The reversal of 516216241 is 142612615.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 440160400 + 76055841 = 20980^2 + 8721^2 .

It is a cyclic number.

It is not a de Polignac number, because 516216241 - 2²³ = 507827633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (516213241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 258108120 + 258108121.

It is an arithmetic number, because the mean of its divisors is an integer number (258108121).

Almost surely, 2^516216241 is an apocalyptic number.

It is an amenable number.

516216241 is a deficient number, since it is larger than the sum of its proper divisors (1).

516216241 is an equidigital number, since it uses as much as digits as its factorization.

516216241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 28.

The square root of 516216241 is about 22720.3926242484. The cubic root of 516216241 is about 802.1899584862.

Adding to 516216241 its reverse (142612615), we get a palindrome (658828856).

The spelling of 516216241 in words is "five hundred sixteen million, two hundred sixteen thousand, two hundred forty-one".