520274969 has 2 divisors, whose sum is σ = 520274970. Its totient is φ = 520274968.

The previous prime is 520274957. The next prime is 520274983. The reversal of 520274969 is 969472025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 318265600 + 202009369 = 17840^2 + 14213^2 .

It is a cyclic number.

It is not a de Polignac number, because 520274969 - 2¹⁶ = 520209433 is a prime.

It is a super-2 number, since 2×520274969² = 541372086735901922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (520274999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260137484 + 260137485.

It is an arithmetic number, because the mean of its divisors is an integer number (260137485).

Almost surely, 2^520274969 is an apocalyptic number.

It is an amenable number.

520274969 is a deficient number, since it is larger than the sum of its proper divisors (1).

520274969 is an equidigital number, since it uses as much as digits as its factorization.

520274969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 520274969 is about 22809.5367993302. The cubic root of 520274969 is about 804.2868671187.

The spelling of 520274969 in words is "five hundred twenty million, two hundred seventy-four thousand, nine hundred sixty-nine".