520106369 has 2 divisors, whose sum is σ = 520106370. Its totient is φ = 520106368.

The previous prime is 520106359. The next prime is 520106401. The reversal of 520106369 is 963601025.

It is a happy number.

It is an a-pointer prime, because the next prime (520106401) can be obtained adding 520106369 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 500640625 + 19465744 = 22375^2 + 4412^2 .

It is a cyclic number.

It is not a de Polignac number, because 520106369 - 2¹² = 520102273 is a prime.

It is a super-2 number, since 2×520106369² = 541021270148728322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (520106339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260053184 + 260053185.

It is an arithmetic number, because the mean of its divisors is an integer number (260053185).

Almost surely, 2^520106369 is an apocalyptic number.

It is an amenable number.

520106369 is a deficient number, since it is larger than the sum of its proper divisors (1).

520106369 is an equidigital number, since it uses as much as digits as its factorization.

520106369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 520106369 is about 22805.8406773353. The cubic root of 520106369 is about 804.1999788229.

The spelling of 520106369 in words is "five hundred twenty million, one hundred six thousand, three hundred sixty-nine".