531050249 has 2 divisors, whose sum is σ = 531050250. Its totient is φ = 531050248.

The previous prime is 531050213. The next prime is 531050263. The reversal of 531050249 is 942050135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312158224 + 218892025 = 17668^2 + 14795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-531050249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (531050269) 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, 265525124 + 265525125.

It is an arithmetic number, because the mean of its divisors is an integer number (265525125).

Almost surely, 2^531050249 is an apocalyptic number.

It is an amenable number.

531050249 is a deficient number, since it is larger than the sum of its proper divisors (1).

531050249 is an equidigital number, since it uses as much as digits as its factorization.

531050249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 531050249 is about 23044.5275282441. The cubic root of 531050249 is about 809.8014292497.

The spelling of 531050249 in words is "five hundred thirty-one million, fifty thousand, two hundred forty-nine".