550635545645 has 4 divisors (see below), whose sum is σ = 660762654780. Its totient is φ = 440508436512.

The previous prime is 550635545639. The next prime is 550635545657. The reversal of 550635545645 is 546545536055.

It is a happy number.

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 346984614916 + 203650930729 = 589054^2 + 451277^2 .

It is a cyclic number.

It is not a de Polignac number, because 550635545645 - 2¹⁴ = 550635529261 is a prime.

It is a super-3 number, since 3×550635545645³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 55063554560 + ... + 55063554569.

It is an arithmetic number, because the mean of its divisors is an integer number (165190663695).

Almost surely, 2^550635545645 is an apocalyptic number.

It is an amenable number.

550635545645 is a deficient number, since it is larger than the sum of its proper divisors (110127109135).

550635545645 is a wasteful number, since it uses less digits than its factorization.

550635545645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110127109134.

The product of its (nonzero) digits is 27000000, while the sum is 53.

The spelling of 550635545645 in words is "five hundred fifty billion, six hundred thirty-five million, five hundred forty-five thousand, six hundred forty-five".