655655093 has 2 divisors, whose sum is σ = 655655094. Its totient is φ = 655655092.

The previous prime is 655655087. The next prime is 655655129. The reversal of 655655093 is 390556556.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 433555684 + 222099409 = 20822^2 + 14903^2 .

It is a cyclic number.

It is not a de Polignac number, because 655655093 - 2¹⁸ = 655392949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655655083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327827546 + 327827547.

It is an arithmetic number, because the mean of its divisors is an integer number (327827547).

Almost surely, 2^655655093 is an apocalyptic number.

It is an amenable number.

655655093 is a deficient number, since it is larger than the sum of its proper divisors (1).

655655093 is an equidigital number, since it uses as much as digits as its factorization.

655655093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 607500, while the sum is 44.

The square root of 655655093 is about 25605.7628865066. The cubic root of 655655093 is about 868.7439897588.

The spelling of 655655093 in words is "six hundred fifty-five million, six hundred fifty-five thousand, ninety-three".