1255701563 has 2 divisors, whose sum is σ = 1255701564. Its totient is φ = 1255701562.

The previous prime is 1255701553. The next prime is 1255701581. The reversal of 1255701563 is 3651075521.

It is a weak prime.

It is an emirp because it is prime and its reverse (3651075521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1255701563 - 2¹² = 1255697467 is a prime.

It is not a weakly prime, because it can be changed into another prime (1255701553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627850781 + 627850782.

It is an arithmetic number, because the mean of its divisors is an integer number (627850782).

Almost surely, 2^1255701563 is an apocalyptic number.

1255701563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255701563 is an equidigital number, since it uses as much as digits as its factorization.

1255701563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 1255701563 is about 35435.8795996374. The cubic root of 1255701563 is about 1078.8526804875.

The spelling of 1255701563 in words is "one billion, two hundred fifty-five million, seven hundred one thousand, five hundred sixty-three".