55055000605 has 24 divisors (see below), whose sum is σ = 72740933496. Its totient is φ = 39972218880.

The previous prime is 55055000569. The next prime is 55055000669. The reversal of 55055000605 is 50600055055.

It can be written as a sum of positive squares in 4 ways, for example, as 23452472164 + 31602528441 = 153142^2 + 177771^2 .

It is not a de Polignac number, because 55055000605 - 2⁷ = 55055000477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282037 + ... + 435493.

It is an arithmetic number, because the mean of its divisors is an integer number (3030872229).

Almost surely, 2^55055000605 is an apocalyptic number.

55055000605 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

55055000605 is a deficient number, since it is larger than the sum of its proper divisors (17685932891).

55055000605 is a wasteful number, since it uses less digits than its factorization.

55055000605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154077 (or 154066 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 31.

The spelling of 55055000605 in words is "fifty-five billion, fifty-five million, six hundred five", and thus it is an aban number.