520285573 has 2 divisors, whose sum is σ = 520285574. Its totient is φ = 520285572.

The previous prime is 520285567. The next prime is 520285603. The reversal of 520285573 is 375582025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 363359844 + 156925729 = 19062^2 + 12527^2 .

It is a cyclic number.

It is not a de Polignac number, because 520285573 - 2²¹ = 518188421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520285523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260142786 + 260142787.

It is an arithmetic number, because the mean of its divisors is an integer number (260142787).

Almost surely, 2^520285573 is an apocalyptic number.

It is an amenable number.

520285573 is a deficient number, since it is larger than the sum of its proper divisors (1).

520285573 is an equidigital number, since it uses as much as digits as its factorization.

520285573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84000, while the sum is 37.

The square root of 520285573 is about 22809.7692447776. The cubic root of 520285573 is about 804.2923312807.

The spelling of 520285573 in words is "five hundred twenty million, two hundred eighty-five thousand, five hundred seventy-three".