252530413 has 2 divisors, whose sum is σ = 252530414. Its totient is φ = 252530412.

The previous prime is 252530351. The next prime is 252530419. The reversal of 252530413 is 314035252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251603044 + 927369 = 15862^2 + 963^2 .

It is a cyclic number.

It is not a de Polignac number, because 252530413 - 2¹⁷ = 252399341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252530419) 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, 126265206 + 126265207.

It is an arithmetic number, because the mean of its divisors is an integer number (126265207).

Almost surely, 2^252530413 is an apocalyptic number.

It is an amenable number.

252530413 is a deficient number, since it is larger than the sum of its proper divisors (1).

252530413 is an equidigital number, since it uses as much as digits as its factorization.

252530413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 252530413 is about 15891.2055238110. The cubic root of 252530413 is about 632.0788078367.

Adding to 252530413 its reverse (314035252), we get a palindrome (566565665).

The spelling of 252530413 in words is "two hundred fifty-two million, five hundred thirty thousand, four hundred thirteen".