520222523 has 2 divisors, whose sum is σ = 520222524. Its totient is φ = 520222522.

The previous prime is 520222517. The next prime is 520222531. The reversal of 520222523 is 325222025.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520222523 - 2⁶ = 520222459 is a prime.

It is not a weakly prime, because it can be changed into another prime (520222723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260111261 + 260111262.

It is an arithmetic number, because the mean of its divisors is an integer number (260111262).

Almost surely, 2^520222523 is an apocalyptic number.

520222523 is a deficient number, since it is larger than the sum of its proper divisors (1).

520222523 is an equidigital number, since it uses as much as digits as its factorization.

520222523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 520222523 is about 22808.3871196540. The cubic root of 520222523 is about 804.2598409954.

Adding to 520222523 its reverse (325222025), we get a palindrome (845444548).

It can be divided in two parts, 52022 and 2523, that added together give a palindrome (54545).

The spelling of 520222523 in words is "five hundred twenty million, two hundred twenty-two thousand, five hundred twenty-three".