675506257 has 2 divisors, whose sum is σ = 675506258. Its totient is φ = 675506256.

The previous prime is 675506243. The next prime is 675506263. The reversal of 675506257 is 752605576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 562211521 + 113294736 = 23711^2 + 10644^2 .

It is a cyclic number.

It is not a de Polignac number, because 675506257 - 2⁷ = 675506129 is a prime.

It is not a weakly prime, because it can be changed into another prime (675506057) 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, 337753128 + 337753129.

It is an arithmetic number, because the mean of its divisors is an integer number (337753129).

Almost surely, 2^675506257 is an apocalyptic number.

It is an amenable number.

675506257 is a deficient number, since it is larger than the sum of its proper divisors (1).

675506257 is an equidigital number, since it uses as much as digits as its factorization.

675506257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 441000, while the sum is 43.

The square root of 675506257 is about 25990.5032079027. The cubic root of 675506257 is about 877.4245710225.

The spelling of 675506257 in words is "six hundred seventy-five million, five hundred six thousand, two hundred fifty-seven".