655883279 has 2 divisors, whose sum is σ = 655883280. Its totient is φ = 655883278.

The previous prime is 655883243. The next prime is 655883281. The reversal of 655883279 is 972388556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 655883279 - 2⁸ = 655883023 is a prime.

It is a Sophie Germain prime.

Together with 655883281, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 655883279.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655883209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327941639 + 327941640.

It is an arithmetic number, because the mean of its divisors is an integer number (327941640).

Almost surely, 2^655883279 is an apocalyptic number.

655883279 is a deficient number, since it is larger than the sum of its proper divisors (1).

655883279 is an equidigital number, since it uses as much as digits as its factorization.

655883279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 53.

The square root of 655883279 is about 25610.2182536581. The cubic root of 655883279 is about 868.8447603344.

The spelling of 655883279 in words is "six hundred fifty-five million, eight hundred eighty-three thousand, two hundred seventy-nine".