520659031 has 2 divisors, whose sum is σ = 520659032. Its totient is φ = 520659030.

The previous prime is 520658993. The next prime is 520659103. The reversal of 520659031 is 130956025.

Together with next prime (520659103) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520659031 - 2⁹ = 520658519 is a prime.

It is a super-2 number, since 2×520659031² = 542171653123717922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 520658984 and 520659002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520659331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260329515 + 260329516.

It is an arithmetic number, because the mean of its divisors is an integer number (260329516).

Almost surely, 2^520659031 is an apocalyptic number.

520659031 is a deficient number, since it is larger than the sum of its proper divisors (1).

520659031 is an equidigital number, since it uses as much as digits as its factorization.

520659031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 520659031 is about 22817.9541370387. The cubic root of 520659031 is about 804.4847240625.

The spelling of 520659031 in words is "five hundred twenty million, six hundred fifty-nine thousand, thirty-one".