520022969 has 2 divisors, whose sum is σ = 520022970. Its totient is φ = 520022968.

The previous prime is 520022959. The next prime is 520023017. The reversal of 520022969 is 969220025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 309337744 + 210685225 = 17588^2 + 14515^2 .

It is a cyclic number.

It is not a de Polignac number, because 520022969 - 2⁴ = 520022953 is a prime.

It is a super-2 number, since 2×520022969² = 540847776575149922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (520022929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260011484 + 260011485.

It is an arithmetic number, because the mean of its divisors is an integer number (260011485).

Almost surely, 2^520022969 is an apocalyptic number.

It is an amenable number.

520022969 is a deficient number, since it is larger than the sum of its proper divisors (1).

520022969 is an equidigital number, since it uses as much as digits as its factorization.

520022969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 520022969 is about 22804.0121250626. The cubic root of 520022969 is about 804.1569915499.

The spelling of 520022969 in words is "five hundred twenty million, twenty-two thousand, nine hundred sixty-nine".