655246552309 has 2 divisors, whose sum is σ = 655246552310. Its totient is φ = 655246552308.

The previous prime is 655246552277. The next prime is 655246552361. The reversal of 655246552309 is 903255642556.

It is an a-pointer prime, because the next prime (655246552361) can be obtained adding 655246552309 to its sum of digits (52).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 526923551025 + 128323001284 = 725895^2 + 358222^2 .

It is a cyclic number.

It is not a de Polignac number, because 655246552309 - 2⁵ = 655246552277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (655246552109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327623276154 + 327623276155.

It is an arithmetic number, because the mean of its divisors is an integer number (327623276155).

Almost surely, 2^655246552309 is an apocalyptic number.

It is an amenable number.

655246552309 is a deficient number, since it is larger than the sum of its proper divisors (1).

655246552309 is an equidigital number, since it uses as much as digits as its factorization.

655246552309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720000, while the sum is 52.

The spelling of 655246552309 in words is "six hundred fifty-five billion, two hundred forty-six million, five hundred fifty-two thousand, three hundred nine".