1253055563 has 2 divisors, whose sum is σ = 1253055564. Its totient is φ = 1253055562.

The previous prime is 1253055547. The next prime is 1253055569. The reversal of 1253055563 is 3655503521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1253055563 - 2⁴ = 1253055547 is a prime.

It is not a weakly prime, because it can be changed into another prime (1253055569) 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, 626527781 + 626527782.

It is an arithmetic number, because the mean of its divisors is an integer number (626527782).

Almost surely, 2^1253055563 is an apocalyptic number.

1253055563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1253055563 is an equidigital number, since it uses as much as digits as its factorization.

1253055563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67500, while the sum is 35.

The square root of 1253055563 is about 35398.5248703954. The cubic root of 1253055563 is about 1078.0943655825.

The spelling of 1253055563 in words is "one billion, two hundred fifty-three million, fifty-five thousand, five hundred sixty-three".