550678057 has 2 divisors, whose sum is σ = 550678058. Its totient is φ = 550678056.

The previous prime is 550678043. The next prime is 550678091. The reversal of 550678057 is 750876055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 544802281 + 5875776 = 23341^2 + 2424^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-550678057 is a prime.

It is a super-2 number, since 2×550678057² = 606492644922590498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (550678027) 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 as a sum of consecutive naturals, namely, 275339028 + 275339029.

It is an arithmetic number, because the mean of its divisors is an integer number (275339029).

Almost surely, 2^550678057 is an apocalyptic number.

It is an amenable number.

550678057 is a deficient number, since it is larger than the sum of its proper divisors (1).

550678057 is an equidigital number, since it uses as much as digits as its factorization.

550678057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294000, while the sum is 43.

The square root of 550678057 is about 23466.5305701546. The cubic root of 550678057 is about 819.6578271950.

The spelling of 550678057 in words is "five hundred fifty million, six hundred seventy-eight thousand, fifty-seven".