1550545229 has 2 divisors, whose sum is σ = 1550545230. Its totient is φ = 1550545228.

The previous prime is 1550545219. The next prime is 1550545261. The reversal of 1550545229 is 9225450551.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1495755625 + 54789604 = 38675^2 + 7402^2 .

It is a cyclic number.

It is not a de Polignac number, because 1550545229 - 2⁸ = 1550544973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1550545192 and 1550545201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1550545219) 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, 775272614 + 775272615.

It is an arithmetic number, because the mean of its divisors is an integer number (775272615).

Almost surely, 2^1550545229 is an apocalyptic number.

It is an amenable number.

1550545229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1550545229 is an equidigital number, since it uses as much as digits as its factorization.

1550545229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90000, while the sum is 38.

The square root of 1550545229 is about 39376.9631764564. The cubic root of 1550545229 is about 1157.4302082450.

The spelling of 1550545229 in words is "one billion, five hundred fifty million, five hundred forty-five thousand, two hundred twenty-nine".