513422233 has 2 divisors, whose sum is σ = 513422234. Its totient is φ = 513422232.

The previous prime is 513422209. The next prime is 513422243. The reversal of 513422233 is 332224315.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312122889 + 201299344 = 17667^2 + 14188^2 .

It is a cyclic number.

It is not a de Polignac number, because 513422233 - 2⁵ = 513422201 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 513422198 and 513422207.

It is not a weakly prime, because it can be changed into another prime (513422243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256711116 + 256711117.

It is an arithmetic number, because the mean of its divisors is an integer number (256711117).

Almost surely, 2^513422233 is an apocalyptic number.

It is an amenable number.

513422233 is a deficient number, since it is larger than the sum of its proper divisors (1).

513422233 is an equidigital number, since it uses as much as digits as its factorization.

513422233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 25.

The square root of 513422233 is about 22658.8224098253. The cubic root of 513422233 is about 800.7400615292.

Adding to 513422233 its reverse (332224315), we get a palindrome (845646548).

The spelling of 513422233 in words is "five hundred thirteen million, four hundred twenty-two thousand, two hundred thirty-three".