1005073232551 has 4 divisors (see below), whose sum is σ = 1005075306232. Its totient is φ = 1005071158872.

The previous prime is 1005073232507. The next prime is 1005073232641. The reversal of 1005073232551 is 1552323705001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1005073232551 - 2²⁵ = 1005039678119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005073238551) 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 in 3 ways as a sum of consecutive naturals, for example, 121660 + ... + 1423006.

It is an arithmetic number, because the mean of its divisors is an integer number (251268826558).

Almost surely, 2^{1005073232551} is an apocalyptic number.

1005073232551 is a deficient number, since it is larger than the sum of its proper divisors (2073681).

1005073232551 is an equidigital number, since it uses as much as digits as its factorization.

1005073232551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073680.

The product of its (nonzero) digits is 31500, while the sum is 34.

Adding to 1005073232551 its reverse (1552323705001), we get a palindrome (2557396937552).

The spelling of 1005073232551 in words is "one trillion, five billion, seventy-three million, two hundred thirty-two thousand, five hundred fifty-one".