5205240223 has 2 divisors, whose sum is σ = 5205240224. Its totient is φ = 5205240222.

The previous prime is 5205240199. The next prime is 5205240241. The reversal of 5205240223 is 3220425025.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5205240223 - 2⁵ = 5205240191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5205240283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2602620111 + 2602620112.

It is an arithmetic number, because the mean of its divisors is an integer number (2602620112).

Almost surely, 2^5205240223 is an apocalyptic number.

5205240223 is a deficient number, since it is larger than the sum of its proper divisors (1).

5205240223 is an equidigital number, since it uses as much as digits as its factorization.

5205240223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 5205240223 is about 72147.3507691031. The cubic root of 5205240223 is about 1733.0599750583.

Adding to 5205240223 its reverse (3220425025), we get a palindrome (8425665248).

The spelling of 5205240223 in words is "five billion, two hundred five million, two hundred forty thousand, two hundred twenty-three".