655055287 has 2 divisors, whose sum is σ = 655055288. Its totient is φ = 655055286.

The previous prime is 655055239. The next prime is 655055293. The reversal of 655055287 is 782550556.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 655055287 - 2¹¹ = 655053239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655055227) 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, 327527643 + 327527644.

It is an arithmetic number, because the mean of its divisors is an integer number (327527644).

Almost surely, 2^655055287 is an apocalyptic number.

655055287 is a deficient number, since it is larger than the sum of its proper divisors (1).

655055287 is an equidigital number, since it uses as much as digits as its factorization.

655055287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420000, while the sum is 43.

The square root of 655055287 is about 25594.0478822714. The cubic root of 655055287 is about 868.4789943157.

The spelling of 655055287 in words is "six hundred fifty-five million, fifty-five thousand, two hundred eighty-seven".