5554820921 has 16 divisors (see below), whose sum is σ = 6199623360. Its totient is φ = 4941733440.

The previous prime is 5554820911. The next prime is 5554820933. The reversal of 5554820921 is 1290284555.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5554820921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5554820911) 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 15 ways as a sum of consecutive naturals, for example, 199166 + ... + 225336.

It is an arithmetic number, because the mean of its divisors is an integer number (387476460).

Almost surely, 2^5554820921 is an apocalyptic number.

It is an amenable number.

5554820921 is a deficient number, since it is larger than the sum of its proper divisors (644802439).

5554820921 is a wasteful number, since it uses less digits than its factorization.

5554820921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26776.

The product of its (nonzero) digits is 144000, while the sum is 41.

The square root of 5554820921 is about 74530.6710086525. The cubic root of 5554820921 is about 1771.0195452925.

The spelling of 5554820921 in words is "five billion, five hundred fifty-four million, eight hundred twenty thousand, nine hundred twenty-one".