550554899 has 2 divisors, whose sum is σ = 550554900. Its totient is φ = 550554898.

The previous prime is 550554889. The next prime is 550554923. The reversal of 550554899 is 998455055.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550554899 is a prime.

It is a super-2 number, since 2×550554899² = 606221393625800402, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (550554859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275277449 + 275277450.

It is an arithmetic number, because the mean of its divisors is an integer number (275277450).

Almost surely, 2^550554899 is an apocalyptic number.

550554899 is a deficient number, since it is larger than the sum of its proper divisors (1).

550554899 is an equidigital number, since it uses as much as digits as its factorization.

550554899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620000, while the sum is 50.

The square root of 550554899 is about 23463.9063030860. The cubic root of 550554899 is about 819.5967177174.

The spelling of 550554899 in words is "five hundred fifty million, five hundred fifty-four thousand, eight hundred ninety-nine".