55000610505 has 24 divisors (see below), whose sum is σ = 97659623880. Its totient is φ = 28618202880.

The previous prime is 55000610503. The next prime is 55000610521. The reversal of 55000610505 is 50501600055.

55000610505 is a `hidden beast` number, since 550 + 0 + 0 + 6 + 105 + 0 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5407102089 + 49593508416 = 73533^2 + 222696^2 .

It is not a de Polignac number, because 55000610505 - 2¹ = 55000610503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55000610503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14903470 + ... + 14907159.

It is an arithmetic number, because the mean of its divisors is an integer number (4069150995).

Almost surely, 2^55000610505 is an apocalyptic number.

It is an amenable number.

55000610505 is a deficient number, since it is larger than the sum of its proper divisors (42659013375).

55000610505 is a wasteful number, since it uses less digits than its factorization.

55000610505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29810681 (or 29810678 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The spelling of 55000610505 in words is "fifty-five billion, six hundred ten thousand, five hundred five".