55255275305 has 4 divisors (see below), whose sum is σ = 66306330372. Its totient is φ = 44204220240.

The previous prime is 55255275209. The next prime is 55255275349. The reversal of 55255275305 is 50357255255.

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 42754246441 + 12501028864 = 206771^2 + 111808^2 .

It is not a de Polignac number, because 55255275305 - 2¹⁰ = 55255274281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5525527526 + ... + 5525527535.

It is an arithmetic number, because the mean of its divisors is an integer number (16576582593).

Almost surely, 2^55255275305 is an apocalyptic number.

It is an amenable number.

55255275305 is a deficient number, since it is larger than the sum of its proper divisors (11051055067).

55255275305 is a wasteful number, since it uses less digits than its factorization.

55255275305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11051055066.

The product of its (nonzero) digits is 1312500, while the sum is 44.

The spelling of 55255275305 in words is "fifty-five billion, two hundred fifty-five million, two hundred seventy-five thousand, three hundred five".