555556049 has 4 divisors (see below), whose sum is σ = 556147380. Its totient is φ = 554964720.

The previous prime is 555556033. The next prime is 555556081. The reversal of 555556049 is 940655555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 403206400 + 152349649 = 20080^2 + 12343^2 .

It is a cyclic number.

It is not a de Polignac number, because 555556049 - 2⁴ = 555556033 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (555546049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294254 + ... + 296135.

It is an arithmetic number, because the mean of its divisors is an integer number (139036845).

Almost surely, 2^555556049 is an apocalyptic number.

It is an amenable number.

555556049 is a deficient number, since it is larger than the sum of its proper divisors (591331).

555556049 is an equidigital number, since it uses as much as digits as its factorization.

555556049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591330.

The product of its (nonzero) digits is 675000, while the sum is 44.

The square root of 555556049 is about 23570.2365070866. The cubic root of 555556049 is about 822.0709348311.

The spelling of 555556049 in words is "five hundred fifty-five million, five hundred fifty-six thousand, forty-nine".