538049249 has 2 divisors, whose sum is σ = 538049250. Its totient is φ = 538049248.

The previous prime is 538049137. The next prime is 538049251. The reversal of 538049249 is 942940835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 502432225 + 35617024 = 22415^2 + 5968^2 .

It is a cyclic number.

It is not a de Polignac number, because 538049249 - 2⁸ = 538048993 is a prime.

Together with 538049251, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (538049849) 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, 269024624 + 269024625.

It is an arithmetic number, because the mean of its divisors is an integer number (269024625).

Almost surely, 2^538049249 is an apocalyptic number.

It is an amenable number.

538049249 is a deficient number, since it is larger than the sum of its proper divisors (1).

538049249 is an equidigital number, since it uses as much as digits as its factorization.

538049249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 538049249 is about 23195.8886227711. Note that the first 3 decimals coincide. The cubic root of 538049249 is about 813.3435179493.

The spelling of 538049249 in words is "five hundred thirty-eight million, forty-nine thousand, two hundred forty-nine".