655402303204553 has 2 divisors, whose sum is σ = 655402303204554. Its totient is φ = 655402303204552.

The previous prime is 655402303204541. The next prime is 655402303204631. The reversal of 655402303204553 is 355402303204556.

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., 383843642757184 + 271558660447369 = 19591928^2 + 16479037^2 .

It is a cyclic number.

It is not a de Polignac number, because 655402303204553 - 2¹² = 655402303200457 is a prime.

It is a super-2 number, since 2×655402303204553² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 655402303204498 and 655402303204507.

It is not a weakly prime, because it can be changed into another prime (655402303203553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327701151602276 + 327701151602277.

It is an arithmetic number, because the mean of its divisors is an integer number (327701151602277).

Almost surely, 2^{655402303204553} is an apocalyptic number.

It is an amenable number.

655402303204553 is a deficient number, since it is larger than the sum of its proper divisors (1).

655402303204553 is an equidigital number, since it uses as much as digits as its factorization.

655402303204553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480000, while the sum is 47.

The spelling of 655402303204553 in words is "six hundred fifty-five trillion, four hundred two billion, three hundred three million, two hundred four thousand, five hundred fifty-three".