520230757 has 2 divisors, whose sum is σ = 520230758. Its totient is φ = 520230756.

The previous prime is 520230611. The next prime is 520230769. The reversal of 520230757 is 757032025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 503957601 + 16273156 = 22449^2 + 4034^2 .

It is a cyclic number.

It is not a de Polignac number, because 520230757 - 2¹⁵ = 520197989 is a prime.

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, 260115378 + 260115379.

It is an arithmetic number, because the mean of its divisors is an integer number (260115379).

Almost surely, 2^520230757 is an apocalyptic number.

It is an amenable number.

520230757 is a deficient number, since it is larger than the sum of its proper divisors (1).

520230757 is an equidigital number, since it uses as much as digits as its factorization.

520230757 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14700, while the sum is 31.

The square root of 520230757 is about 22808.5676227158. The cubic root of 520230757 is about 804.2640842056.

The spelling of 520230757 in words is "five hundred twenty million, two hundred thirty thousand, seven hundred fifty-seven".