520230253 has 2 divisors, whose sum is σ = 520230254. Its totient is φ = 520230252.

The previous prime is 520230239. The next prime is 520230257. The reversal of 520230253 is 352032025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 515199204 + 5031049 = 22698^2 + 2243^2 .

It is a cyclic number.

It is not a de Polignac number, because 520230253 - 2¹³ = 520222061 is a prime.

It is a super-2 number, since 2×520230253² = 541279032272888018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520230257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260115126 + 260115127.

It is an arithmetic number, because the mean of its divisors is an integer number (260115127).

Almost surely, 2^520230253 is an apocalyptic number.

It is an amenable number.

520230253 is a deficient number, since it is larger than the sum of its proper divisors (1).

520230253 is an equidigital number, since it uses as much as digits as its factorization.

520230253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 520230253 is about 22808.5565742333. The cubic root of 520230253 is about 804.2638244816.

Adding to 520230253 its reverse (352032025), we get a palindrome (872262278).

The spelling of 520230253 in words is "five hundred twenty million, two hundred thirty thousand, two hundred fifty-three".