1005500505523 has 2 divisors, whose sum is σ = 1005500505524. Its totient is φ = 1005500505522.

The previous prime is 1005500505497. The next prime is 1005500505533. The reversal of 1005500505523 is 3255050055001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1005500505523 - 2¹⁷ = 1005500374451 is a prime.

It is a super-2 number, since 2×1005500505523² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1005500505533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502750252761 + 502750252762.

It is an arithmetic number, because the mean of its divisors is an integer number (502750252762).

Almost surely, 2^{1005500505523} is an apocalyptic number.

1005500505523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005500505523 is an equidigital number, since it uses as much as digits as its factorization.

1005500505523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18750, while the sum is 31.

The spelling of 1005500505523 in words is "one trillion, five billion, five hundred million, five hundred five thousand, five hundred twenty-three".