551548099 has 2 divisors, whose sum is σ = 551548100. Its totient is φ = 551548098.

The previous prime is 551548097. The next prime is 551548133. The reversal of 551548099 is 990845155.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 551548099 - 2¹ = 551548097 is a prime.

Together with 551548097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (551548091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275774049 + 275774050.

It is an arithmetic number, because the mean of its divisors is an integer number (275774050).

Almost surely, 2^551548099 is an apocalyptic number.

551548099 is a deficient number, since it is larger than the sum of its proper divisors (1).

551548099 is an equidigital number, since it uses as much as digits as its factorization.

551548099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 46.

The square root of 551548099 is about 23485.0611879126. The cubic root of 551548099 is about 820.0892719583.

The spelling of 551548099 in words is "five hundred fifty-one million, five hundred forty-eight thousand, ninety-nine".