520531093 has 2 divisors, whose sum is σ = 520531094. Its totient is φ = 520531092.

The previous prime is 520531027. The next prime is 520531111. The reversal of 520531093 is 390135025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 487835569 + 32695524 = 22087^2 + 5718^2 .

It is a cyclic number.

It is not a de Polignac number, because 520531093 - 2¹³ = 520522901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520531793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260265546 + 260265547.

It is an arithmetic number, because the mean of its divisors is an integer number (260265547).

Almost surely, 2^520531093 is an apocalyptic number.

It is an amenable number.

520531093 is a deficient number, since it is larger than the sum of its proper divisors (1).

520531093 is an equidigital number, since it uses as much as digits as its factorization.

520531093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 520531093 is about 22815.1505145156. The cubic root of 520531093 is about 804.4188251460.

The spelling of 520531093 in words is "five hundred twenty million, five hundred thirty-one thousand, ninety-three".