1005501667 has 2 divisors, whose sum is σ = 1005501668. Its totient is φ = 1005501666.

The previous prime is 1005501661. The next prime is 1005501683. The reversal of 1005501667 is 7661055001.

It is a weak prime.

It is an emirp because it is prime and its reverse (7661055001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1005501667 is a prime.

It is a super-2 number, since 2×1005501667² = 2022067204679557778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1005501661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502750833 + 502750834.

It is an arithmetic number, because the mean of its divisors is an integer number (502750834).

Almost surely, 2^1005501667 is an apocalyptic number.

1005501667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005501667 is an equidigital number, since it uses as much as digits as its factorization.

1005501667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 1005501667 is about 31709.6462768035. The cubic root of 1005501667 is about 1001.8305360930.

Adding to 1005501667 its reverse (7661055001), we get a palindrome (8666556668).

The spelling of 1005501667 in words is "one billion, five million, five hundred one thousand, six hundred sixty-seven".