5554000021 has 4 divisors (see below), whose sum is σ = 5733161344. Its totient is φ = 5374838700.

The previous prime is 5553999967. The next prime is 5554000027. The reversal of 5554000021 is 1200004555.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1200004555 = 5 ⋅240000911.

It is a cyclic number.

It is not a de Polignac number, because 5554000021 - 2¹⁵ = 5553967253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5553999956 and 5554000001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5554000027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89580615 + ... + 89580676.

It is an arithmetic number, because the mean of its divisors is an integer number (1433290336).

Almost surely, 2^5554000021 is an apocalyptic number.

It is an amenable number.

5554000021 is a deficient number, since it is larger than the sum of its proper divisors (179161323).

5554000021 is a wasteful number, since it uses less digits than its factorization.

5554000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179161322.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 5554000021 is about 74525.1636764388. The cubic root of 5554000021 is about 1770.9322996616.

Adding to 5554000021 its reverse (1200004555), we get a palindrome (6754004576).

The spelling of 5554000021 in words is "five billion, five hundred fifty-four million, twenty-one", and thus it is an aban number.