531025031 has 2 divisors, whose sum is σ = 531025032. Its totient is φ = 531025030.

The previous prime is 531024929. The next prime is 531025037. The reversal of 531025031 is 130520135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 531025031 - 2¹⁰ = 531024007 is a prime.

It is a super-2 number, since 2×531025031² = 563975167097101922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 531024994 and 531025012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531025037) 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, 265512515 + 265512516.

It is an arithmetic number, because the mean of its divisors is an integer number (265512516).

Almost surely, 2^531025031 is an apocalyptic number.

531025031 is a deficient number, since it is larger than the sum of its proper divisors (1).

531025031 is an equidigital number, since it uses as much as digits as its factorization.

531025031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 531025031 is about 23043.9803636438. The cubic root of 531025031 is about 809.7886106914.

Adding to 531025031 its reverse (130520135), we get a palindrome (661545166).

The spelling of 531025031 in words is "five hundred thirty-one million, twenty-five thousand, thirty-one".