520149593 has 2 divisors, whose sum is σ = 520149594. Its totient is φ = 520149592.

The previous prime is 520149571. The next prime is 520149647. The reversal of 520149593 is 395941025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 461734144 + 58415449 = 21488^2 + 7643^2 .

It is a cyclic number.

It is not a de Polignac number, because 520149593 - 2¹⁸ = 519887449 is a prime.

It is not a weakly prime, because it can be changed into another prime (520148593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260074796 + 260074797.

It is an arithmetic number, because the mean of its divisors is an integer number (260074797).

Almost surely, 2^520149593 is an apocalyptic number.

It is an amenable number.

520149593 is a deficient number, since it is larger than the sum of its proper divisors (1).

520149593 is an equidigital number, since it uses as much as digits as its factorization.

520149593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 520149593 is about 22806.7883096240. The cubic root of 520149593 is about 804.2222561743. Note that the first 4 decimals are identical.

The spelling of 520149593 in words is "five hundred twenty million, one hundred forty-nine thousand, five hundred ninety-three".