655100027 has 2 divisors, whose sum is σ = 655100028. Its totient is φ = 655100026.

The previous prime is 655100023. The next prime is 655100081. The reversal of 655100027 is 720001556.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 655100027 - 2² = 655100023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 655099969 and 655100005.

It is not a weakly prime, because it can be changed into another prime (655100021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327550013 + 327550014.

It is an arithmetic number, because the mean of its divisors is an integer number (327550014).

Almost surely, 2^655100027 is an apocalyptic number.

655100027 is a deficient number, since it is larger than the sum of its proper divisors (1).

655100027 is an equidigital number, since it uses as much as digits as its factorization.

655100027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 655100027 is about 25594.9218986892. The cubic root of 655100027 is about 868.4987661153.

The spelling of 655100027 in words is "six hundred fifty-five million, one hundred thousand, twenty-seven".