520432277 has 2 divisors, whose sum is σ = 520432278. Its totient is φ = 520432276.

The previous prime is 520432261. The next prime is 520432307. The reversal of 520432277 is 772234025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 478778161 + 41654116 = 21881^2 + 6454^2 .

It is a cyclic number.

It is not a de Polignac number, because 520432277 - 2⁴ = 520432261 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520432207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260216138 + 260216139.

It is an arithmetic number, because the mean of its divisors is an integer number (260216139).

Almost surely, 2^520432277 is an apocalyptic number.

It is an amenable number.

520432277 is a deficient number, since it is larger than the sum of its proper divisors (1).

520432277 is an equidigital number, since it uses as much as digits as its factorization.

520432277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 520432277 is about 22812.9848332041. The cubic root of 520432277 is about 804.3679191372.

The spelling of 520432277 in words is "five hundred twenty million, four hundred thirty-two thousand, two hundred seventy-seven".