1005252101563 has 2 divisors, whose sum is σ = 1005252101564. Its totient is φ = 1005252101562.

The previous prime is 1005252101551. The next prime is 1005252101573. The reversal of 1005252101563 is 3651012525001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005252101563 is a prime.

It is not a weakly prime, because it can be changed into another prime (1005252101543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502626050781 + 502626050782.

It is an arithmetic number, because the mean of its divisors is an integer number (502626050782).

Almost surely, 2^{1005252101563} is an apocalyptic number.

1005252101563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005252101563 is an equidigital number, since it uses as much as digits as its factorization.

1005252101563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9000, while the sum is 31.

Adding to 1005252101563 its reverse (3651012525001), we get a palindrome (4656264626564).

The spelling of 1005252101563 in words is "one trillion, five billion, two hundred fifty-two million, one hundred one thousand, five hundred sixty-three".