538555273 has 2 divisors, whose sum is σ = 538555274. Its totient is φ = 538555272.

The previous prime is 538555271. The next prime is 538555307. The reversal of 538555273 is 372555835.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 424236409 + 114318864 = 20597^2 + 10692^2 .

It is a cyclic number.

It is not a de Polignac number, because 538555273 - 2¹ = 538555271 is a prime.

It is a super-2 number, since 2×538555273² = 580083564152209058, which contains 22 as substring.

Together with 538555271, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (538555271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269277636 + 269277637.

It is an arithmetic number, because the mean of its divisors is an integer number (269277637).

Almost surely, 2^538555273 is an apocalyptic number.

It is an amenable number.

538555273 is a deficient number, since it is larger than the sum of its proper divisors (1).

538555273 is an equidigital number, since it uses as much as digits as its factorization.

538555273 is an evil number, because the sum of its binary digits is even.

The product of its digits is 630000, while the sum is 43.

The square root of 538555273 is about 23206.7936820234. The cubic root of 538555273 is about 813.5984155470.

The spelling of 538555273 in words is "five hundred thirty-eight million, five hundred fifty-five thousand, two hundred seventy-three".