514425221 has 2 divisors, whose sum is σ = 514425222. Its totient is φ = 514425220.

The previous prime is 514425193. The next prime is 514425227. The reversal of 514425221 is 122524415.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 266016100 + 248409121 = 16310^2 + 15761^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-514425221 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (514425227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257212610 + 257212611.

It is an arithmetic number, because the mean of its divisors is an integer number (257212611).

Almost surely, 2^514425221 is an apocalyptic number.

It is an amenable number.

514425221 is a deficient number, since it is larger than the sum of its proper divisors (1).

514425221 is an equidigital number, since it uses as much as digits as its factorization.

514425221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3200, while the sum is 26.

The square root of 514425221 is about 22680.9440059271. The cubic root of 514425221 is about 801.2611467788.

Adding to 514425221 its reverse (122524415), we get a palindrome (636949636).

The spelling of 514425221 in words is "five hundred fourteen million, four hundred twenty-five thousand, two hundred twenty-one".