655348517 has 2 divisors, whose sum is σ = 655348518. Its totient is φ = 655348516.

The previous prime is 655348501. The next prime is 655348523. The reversal of 655348517 is 715843556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 435389956 + 219958561 = 20866^2 + 14831^2 .

It is a cyclic number.

It is not a de Polignac number, because 655348517 - 2⁴ = 655348501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655348567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327674258 + 327674259.

It is an arithmetic number, because the mean of its divisors is an integer number (327674259).

Almost surely, 2^655348517 is an apocalyptic number.

It is an amenable number.

655348517 is a deficient number, since it is larger than the sum of its proper divisors (1).

655348517 is an equidigital number, since it uses as much as digits as its factorization.

655348517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504000, while the sum is 44.

The square root of 655348517 is about 25599.7757216738. The cubic root of 655348517 is about 868.6085640943.

The spelling of 655348517 in words is "six hundred fifty-five million, three hundred forty-eight thousand, five hundred seventeen".