531225301 has 2 divisors, whose sum is σ = 531225302. Its totient is φ = 531225300.

The previous prime is 531225283. The next prime is 531225323. The reversal of 531225301 is 103522135.

It is an a-pointer prime, because the next prime (531225323) can be obtained adding 531225301 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 467640625 + 63584676 = 21625^2 + 7974^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531225301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (531225371) 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, 265612650 + 265612651.

It is an arithmetic number, because the mean of its divisors is an integer number (265612651).

Almost surely, 2^531225301 is an apocalyptic number.

It is an amenable number.

531225301 is a deficient number, since it is larger than the sum of its proper divisors (1).

531225301 is an equidigital number, since it uses as much as digits as its factorization.

531225301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 531225301 is about 23048.3253404667. The cubic root of 531225301 is about 809.8903987253.

Adding to 531225301 its reverse (103522135), we get a palindrome (634747436).

The spelling of 531225301 in words is "five hundred thirty-one million, two hundred twenty-five thousand, three hundred one".