655316957 has 2 divisors, whose sum is σ = 655316958. Its totient is φ = 655316956.

The previous prime is 655316941. The next prime is 655316971. The reversal of 655316957 is 759613556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 573794116 + 81522841 = 23954^2 + 9029^2 .

It is a cyclic number.

It is not a de Polignac number, because 655316957 - 2⁴ = 655316941 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655318957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327658478 + 327658479.

It is an arithmetic number, because the mean of its divisors is an integer number (327658479).

Almost surely, 2^655316957 is an apocalyptic number.

It is an amenable number.

655316957 is a deficient number, since it is larger than the sum of its proper divisors (1).

655316957 is an equidigital number, since it uses as much as digits as its factorization.

655316957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 850500, while the sum is 47.

The square root of 655316957 is about 25599.1593026021. The cubic root of 655316957 is about 868.5946205077.

The spelling of 655316957 in words is "six hundred fifty-five million, three hundred sixteen thousand, nine hundred fifty-seven".