538357249 has 2 divisors, whose sum is σ = 538357250. Its totient is φ = 538357248.

The previous prime is 538357151. The next prime is 538357277. The reversal of 538357249 is 942753835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381030400 + 157326849 = 19520^2 + 12543^2 .

It is a cyclic number.

It is not a de Polignac number, because 538357249 - 2⁷ = 538357121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 538357199 and 538357208.

It is not a weakly prime, because it can be changed into another prime (538351249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269178624 + 269178625.

It is an arithmetic number, because the mean of its divisors is an integer number (269178625).

Almost surely, 2^538357249 is an apocalyptic number.

It is an amenable number.

538357249 is a deficient number, since it is larger than the sum of its proper divisors (1).

538357249 is an equidigital number, since it uses as much as digits as its factorization.

538357249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 46.

The square root of 538357249 is about 23202.5267805039. The cubic root of 538357249 is about 813.4986846735.

The spelling of 538357249 in words is "five hundred thirty-eight million, three hundred fifty-seven thousand, two hundred forty-nine".