520252643 has 2 divisors, whose sum is σ = 520252644. Its totient is φ = 520252642.

The previous prime is 520252583. The next prime is 520252669. The reversal of 520252643 is 346252025.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 520252643 - 2²² = 516058339 is a prime.

It is not a weakly prime, because it can be changed into another prime (520257643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260126321 + 260126322.

It is an arithmetic number, because the mean of its divisors is an integer number (260126322).

Almost surely, 2^520252643 is an apocalyptic number.

520252643 is a deficient number, since it is larger than the sum of its proper divisors (1).

520252643 is an equidigital number, since it uses as much as digits as its factorization.

520252643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 520252643 is about 22809.0473935235. The cubic root of 520252643 is about 804.2753624552.

The spelling of 520252643 in words is "five hundred twenty million, two hundred fifty-two thousand, six hundred forty-three".