520289951 has 2 divisors, whose sum is σ = 520289952. Its totient is φ = 520289950.

The previous prime is 520289941. The next prime is 520290013. The reversal of 520289951 is 159982025.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520289951 is a prime.

It is a super-2 number, since 2×520289951² = 541403266223164802, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 520289899 and 520289908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520289941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260144975 + 260144976.

It is an arithmetic number, because the mean of its divisors is an integer number (260144976).

Almost surely, 2^520289951 is an apocalyptic number.

520289951 is a deficient number, since it is larger than the sum of its proper divisors (1).

520289951 is an equidigital number, since it uses as much as digits as its factorization.

520289951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 520289951 is about 22809.8652122278. The cubic root of 520289951 is about 804.2945872097.

The spelling of 520289951 in words is "five hundred twenty million, two hundred eighty-nine thousand, nine hundred fifty-one".