550565345385 has 48 divisors (see below), whose sum is σ = 1041134822208. Its totient is φ = 266923900800.

The previous prime is 550565345383. The next prime is 550565345411. The reversal of 550565345385 is 583543565055.

550565345385 is a `hidden beast` number, since 5 + 5 + 0 + 56 + 53 + 4 + 538 + 5 = 666.

It is not a de Polignac number, because 550565345385 - 2¹ = 550565345383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (550565345381) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11878155 + ... + 11924415.

It is an arithmetic number, because the mean of its divisors is an integer number (21690308796).

Almost surely, 2^550565345385 is an apocalyptic number.

550565345385 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

550565345385 is a deficient number, since it is larger than the sum of its proper divisors (490569476823).

550565345385 is a wasteful number, since it uses less digits than its factorization.

550565345385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70326 (or 70323 counting only the distinct ones).

The product of its (nonzero) digits is 27000000, while the sum is 54.

The spelling of 550565345385 in words is "five hundred fifty billion, five hundred sixty-five million, three hundred forty-five thousand, three hundred eighty-five".