500568401 has 2 divisors, whose sum is σ = 500568402. Its totient is φ = 500568400.

The previous prime is 500568371. The next prime is 500568413. The reversal of 500568401 is 104865005.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 468939025 + 31629376 = 21655^2 + 5624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500568401 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (500568491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250284200 + 250284201.

It is an arithmetic number, because the mean of its divisors is an integer number (250284201).

Almost surely, 2^500568401 is an apocalyptic number.

It is an amenable number.

500568401 is a deficient number, since it is larger than the sum of its proper divisors (1).

500568401 is an equidigital number, since it uses as much as digits as its factorization.

500568401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 500568401 is about 22373.3859976536. The cubic root of 500568401 is about 794.0011722029.

The spelling of 500568401 in words is "five hundred million, five hundred sixty-eight thousand, four hundred one".