55266446605 has 4 divisors (see below), whose sum is σ = 66319735932. Its totient is φ = 44213157280.

The previous prime is 55266446549. The next prime is 55266446657. The reversal of 55266446605 is 50664466255.

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 9476438409 + 45790008196 = 97347^2 + 213986^2 .

It is not a de Polignac number, because 55266446605 - 2¹³ = 55266438413 is a prime.

It is a Duffinian number.

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, 5526644656 + ... + 5526644665.

It is an arithmetic number, because the mean of its divisors is an integer number (16579933983).

Almost surely, 2^55266446605 is an apocalyptic number.

It is an amenable number.

55266446605 is a deficient number, since it is larger than the sum of its proper divisors (11053289327).

55266446605 is a wasteful number, since it uses less digits than its factorization.

55266446605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11053289326.

The product of its (nonzero) digits is 5184000, while the sum is 49.

The spelling of 55266446605 in words is "fifty-five billion, two hundred sixty-six million, four hundred forty-six thousand, six hundred five".