538253173 has 2 divisors, whose sum is σ = 538253174. Its totient is φ = 538253172.

The previous prime is 538253119. The next prime is 538253189. The reversal of 538253173 is 371352835.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 508637809 + 29615364 = 22553^2 + 5442^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538253173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538253273) 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, 269126586 + 269126587.

It is an arithmetic number, because the mean of its divisors is an integer number (269126587).

Almost surely, 2^538253173 is an apocalyptic number.

It is an amenable number.

538253173 is a deficient number, since it is larger than the sum of its proper divisors (1).

538253173 is an equidigital number, since it uses as much as digits as its factorization.

538253173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 37.

The square root of 538253173 is about 23200.2838991250. The cubic root of 538253173 is about 813.4462590486.

The spelling of 538253173 in words is "five hundred thirty-eight million, two hundred fifty-three thousand, one hundred seventy-three".