520475951 has 2 divisors, whose sum is σ = 520475952. Its totient is φ = 520475950.

The previous prime is 520475941. The next prime is 520476001. The reversal of 520475951 is 159574025.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520475951 - 2⁶ = 520475887 is a prime.

It is a super-3 number, since 3×520475951³ (a number of 27 digits) contains 333 as substring.

It is a Sophie Germain 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 (520475941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260237975 + 260237976.

It is an arithmetic number, because the mean of its divisors is an integer number (260237976).

Almost surely, 2^520475951 is an apocalyptic number.

520475951 is a deficient number, since it is larger than the sum of its proper divisors (1).

520475951 is an equidigital number, since it uses as much as digits as its factorization.

520475951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 38.

The square root of 520475951 is about 22813.9420311353. The cubic root of 520475951 is about 804.3904190112.

The spelling of 520475951 in words is "five hundred twenty million, four hundred seventy-five thousand, nine hundred fifty-one".