3005512421 has 8 divisors (see below), whose sum is σ = 3095835288. Its totient is φ = 2916000000.

The previous prime is 3005512409. The next prime is 3005512423. The reversal of 3005512421 is 1242155003.

It can be written as a sum of positive squares in 4 ways, for example, as 3568321 + 3001944100 = 1889^2 + 54790^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3005512421 - 2¹⁴ = 3005496037 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 (3005512423) 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 7 ways as a sum of consecutive naturals, for example, 195080 + ... + 209921.

It is an arithmetic number, because the mean of its divisors is an integer number (386979411).

Almost surely, 2^3005512421 is an apocalyptic number.

It is an amenable number.

3005512421 is a deficient number, since it is larger than the sum of its proper divisors (90322867).

3005512421 is a wasteful number, since it uses less digits than its factorization.

3005512421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405223.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 3005512421 is about 54822.5539445218. The cubic root of 3005512421 is about 1443.1323950077.

Adding to 3005512421 its reverse (1242155003), we get a palindrome (4247667424).

The spelling of 3005512421 in words is "three billion, five million, five hundred twelve thousand, four hundred twenty-one".