523382557 has 2 divisors, whose sum is σ = 523382558. Its totient is φ = 523382556.

The previous prime is 523382539. The next prime is 523382581. The reversal of 523382557 is 755283325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 287268601 + 236113956 = 16949^2 + 15366^2 .

It is a cyclic number.

It is not a de Polignac number, because 523382557 - 2⁷ = 523382429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (523382527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261691278 + 261691279.

It is an arithmetic number, because the mean of its divisors is an integer number (261691279).

Almost surely, 2^523382557 is an apocalyptic number.

It is an amenable number.

523382557 is a deficient number, since it is larger than the sum of its proper divisors (1).

523382557 is an equidigital number, since it uses as much as digits as its factorization.

523382557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252000, while the sum is 40.

The square root of 523382557 is about 22877.5557479378. Note that the first 3 decimals coincide. The cubic root of 523382557 is about 805.8850171650.

The spelling of 523382557 in words is "five hundred twenty-three million, three hundred eighty-two thousand, five hundred fifty-seven".