5512421621 has 8 divisors (see below), whose sum is σ = 6315782400. Its totient is φ = 4713028848.

The previous prime is 5512421617. The next prime is 5512421641. The reversal of 5512421621 is 1261242155.

5512421621 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 5512421621 - 2² = 5512421617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5512421641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 989021 + ... + 994578.

It is an arithmetic number, because the mean of its divisors is an integer number (789472800).

Almost surely, 2^5512421621 is an apocalyptic number.

It is an amenable number.

5512421621 is a deficient number, since it is larger than the sum of its proper divisors (803360779).

5512421621 is a wasteful number, since it uses less digits than its factorization.

5512421621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984003.

The product of its digits is 4800, while the sum is 29.

The square root of 5512421621 is about 74245.6841910693. The cubic root of 5512421621 is about 1766.5020366626.

Adding to 5512421621 its reverse (1261242155), we get a palindrome (6773663776).

The spelling of 5512421621 in words is "five billion, five hundred twelve million, four hundred twenty-one thousand, six hundred twenty-one".