655220063 has 2 divisors, whose sum is σ = 655220064. Its totient is φ = 655220062.

The previous prime is 655220039. The next prime is 655220077. The reversal of 655220063 is 360022556.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 655220063 - 2¹⁰ = 655219039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655220663) 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, 327610031 + 327610032.

It is an arithmetic number, because the mean of its divisors is an integer number (327610032).

Almost surely, 2^655220063 is an apocalyptic number.

655220063 is a deficient number, since it is larger than the sum of its proper divisors (1).

655220063 is an equidigital number, since it uses as much as digits as its factorization.

655220063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 655220063 is about 25597.2667095532. The cubic root of 655220063 is about 868.5518087789.

The spelling of 655220063 in words is "six hundred fifty-five million, two hundred twenty thousand, sixty-three".