550440304649 has 2 divisors, whose sum is σ = 550440304650. Its totient is φ = 550440304648.

The previous prime is 550440304627. The next prime is 550440304699. The reversal of 550440304649 is 946403044055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 509698900624 + 40741404025 = 713932^2 + 201845^2 .

It is a cyclic number.

It is not a de Polignac number, because 550440304649 - 2¹⁶ = 550440239113 is a prime.

It is not a weakly prime, because it can be changed into another prime (550440304619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275220152324 + 275220152325.

It is an arithmetic number, because the mean of its divisors is an integer number (275220152325).

Almost surely, 2^550440304649 is an apocalyptic number.

It is an amenable number.

550440304649 is a deficient number, since it is larger than the sum of its proper divisors (1).

550440304649 is an equidigital number, since it uses as much as digits as its factorization.

550440304649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 550440304649 in words is "five hundred fifty billion, four hundred forty million, three hundred four thousand, six hundred forty-nine".