571552481 has 2 divisors, whose sum is σ = 571552482. Its totient is φ = 571552480.

The previous prime is 571552447. The next prime is 571552483. The reversal of 571552481 is 184255175.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 454371856 + 117180625 = 21316^2 + 10825^2 .

It is a cyclic number.

It is not a de Polignac number, because 571552481 - 2¹⁸ = 571290337 is a prime.

It is a super-2 number, since 2×571552481² = 653344477074510722, which contains 22 as substring.

Together with 571552483, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_29915219 and since 571552481 and 29915219 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (571552483) 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, 285776240 + 285776241.

It is an arithmetic number, because the mean of its divisors is an integer number (285776241).

Almost surely, 2^571552481 is an apocalyptic number.

It is an amenable number.

571552481 is a deficient number, since it is larger than the sum of its proper divisors (1).

571552481 is an equidigital number, since it uses as much as digits as its factorization.

571552481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56000, while the sum is 38.

The square root of 571552481 is about 23907.1638008359. The cubic root of 571552481 is about 829.8865093772.

The spelling of 571552481 in words is "five hundred seventy-one million, five hundred fifty-two thousand, four hundred eighty-one".