8005510121 has 4 divisors (see below), whose sum is σ = 9149154432. Its totient is φ = 6861865812.

The previous prime is 8005510099. The next prime is 8005510129. The reversal of 8005510121 is 1210155008.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8005510121 - 2¹⁰ = 8005509097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8005510129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571822145 + ... + 571822158.

It is an arithmetic number, because the mean of its divisors is an integer number (2287288608).

Almost surely, 2^8005510121 is an apocalyptic number.

It is an amenable number.

8005510121 is a deficient number, since it is larger than the sum of its proper divisors (1143644311).

8005510121 is a wasteful number, since it uses less digits than its factorization.

8005510121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143644310.

The product of its (nonzero) digits is 400, while the sum is 23.

The square root of 8005510121 is about 89473.5163106939. The cubic root of 8005510121 is about 2000.4590713687.

Adding to 8005510121 its reverse (1210155008), we get a palindrome (9215665129).

The spelling of 8005510121 in words is "eight billion, five million, five hundred ten thousand, one hundred twenty-one".