655955767 has 2 divisors, whose sum is σ = 655955768. Its totient is φ = 655955766.

The previous prime is 655955759. The next prime is 655955777. The reversal of 655955767 is 767559556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 655955767 - 2³ = 655955759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655955777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327977883 + 327977884.

It is an arithmetic number, because the mean of its divisors is an integer number (327977884).

Almost surely, 2^655955767 is an apocalyptic number.

655955767 is a deficient number, since it is larger than the sum of its proper divisors (1).

655955767 is an equidigital number, since it uses as much as digits as its factorization.

655955767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9922500, while the sum is 55.

The square root of 655955767 is about 25611.6334309235. The cubic root of 655955767 is about 868.8767672992.

It can be divided in two parts, 6559 and 55767, that added together give a palindrome (62326).

The spelling of 655955767 in words is "six hundred fifty-five million, nine hundred fifty-five thousand, seven hundred sixty-seven".