5550664919 has 2 divisors, whose sum is σ = 5550664920. Its totient is φ = 5550664918.

The previous prime is 5550664907. The next prime is 5550664939. The reversal of 5550664919 is 9194660555.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5550664919 - 2³² = 1255697623 is a prime.

It is a super-2 number, since 2×5550664919² = 61619762086034553122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5550664939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2775332459 + 2775332460.

It is an arithmetic number, because the mean of its divisors is an integer number (2775332460).

Almost surely, 2^5550664919 is an apocalyptic number.

5550664919 is a deficient number, since it is larger than the sum of its proper divisors (1).

5550664919 is an equidigital number, since it uses as much as digits as its factorization.

5550664919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458000, while the sum is 50.

The square root of 5550664919 is about 74502.7846392335. The cubic root of 5550664919 is about 1770.5777550432.

The spelling of 5550664919 in words is "five billion, five hundred fifty million, six hundred sixty-four thousand, nine hundred nineteen".