252258397 has 2 divisors, whose sum is σ = 252258398. Its totient is φ = 252258396.

The previous prime is 252258329. The next prime is 252258431. The reversal of 252258397 is 793852252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249039961 + 3218436 = 15781^2 + 1794^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252258397 is a prime.

It is equal to p_13796098 and since 252258397 and 13796098 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252258197) 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, 126129198 + 126129199.

It is an arithmetic number, because the mean of its divisors is an integer number (126129199).

Almost surely, 2^252258397 is an apocalyptic number.

It is an amenable number.

252258397 is a deficient number, since it is larger than the sum of its proper divisors (1).

252258397 is an equidigital number, since it uses as much as digits as its factorization.

252258397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 43.

The square root of 252258397 is about 15882.6445216154. The cubic root of 252258397 is about 631.8517760137.

The spelling of 252258397 in words is "two hundred fifty-two million, two hundred fifty-eight thousand, three hundred ninety-seven".