1355025563 has 2 divisors, whose sum is σ = 1355025564. Its totient is φ = 1355025562.

The previous prime is 1355025509. The next prime is 1355025569. The reversal of 1355025563 is 3655205531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1355025563 - 2⁶ = 1355025499 is a prime.

It is not a weakly prime, because it can be changed into another prime (1355025569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677512781 + 677512782.

It is an arithmetic number, because the mean of its divisors is an integer number (677512782).

Almost surely, 2^1355025563 is an apocalyptic number.

1355025563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355025563 is an equidigital number, since it uses as much as digits as its factorization.

1355025563 is an evil number, because the sum of its binary digits is even.

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

The square root of 1355025563 is about 36810.6718629258. The cubic root of 1355025563 is about 1106.5791833496.

The spelling of 1355025563 in words is "one billion, three hundred fifty-five million, twenty-five thousand, five hundred sixty-three".