538315571 has 2 divisors, whose sum is σ = 538315572. Its totient is φ = 538315570.

The previous prime is 538315517. The next prime is 538315573. The reversal of 538315571 is 175513835.

It is a happy number.

Together with previous prime (538315517) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 538315571 - 2²² = 534121267 is a prime.

Together with 538315573, 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 (538315573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269157785 + 269157786.

It is an arithmetic number, because the mean of its divisors is an integer number (269157786).

Almost surely, 2^538315571 is an apocalyptic number.

538315571 is a deficient number, since it is larger than the sum of its proper divisors (1).

538315571 is an equidigital number, since it uses as much as digits as its factorization.

538315571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 63000, while the sum is 38.

The square root of 538315571 is about 23201.6286281804. The cubic root of 538315571 is about 813.4776912574.

The spelling of 538315571 in words is "five hundred thirty-eight million, three hundred fifteen thousand, five hundred seventy-one".