55000000045 has 8 divisors (see below), whose sum is σ = 67081967640. Its totient is φ = 43278688320.

The previous prime is 55000000039. The next prime is 55000000087. The reversal of 55000000045 is 54000000055.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 147549609 + 54852450436 = 12147^2 + 234206^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55000000045 - 2⁷ = 54999999917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 54999999959 and 55000000031.

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 7 ways as a sum of consecutive naturals, for example, 90163630 + ... + 90164239.

It is an arithmetic number, because the mean of its divisors is an integer number (8385245955).

Almost surely, 2^55000000045 is an apocalyptic number.

It is an amenable number.

55000000045 is a deficient number, since it is larger than the sum of its proper divisors (12081967595).

55000000045 is a wasteful number, since it uses less digits than its factorization.

55000000045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180327935.

The product of its (nonzero) digits is 500, while the sum is 19.

The spelling of 55000000045 in words is "fifty-five billion, forty-five", and thus it is an aban number and an uban number.