55530052805 has 4 divisors (see below), whose sum is σ = 66636063372. Its totient is φ = 44424042240.

The previous prime is 55530052757. The next prime is 55530052807. The reversal of 55530052805 is 50825003555.

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 43803978436 + 11726074369 = 209294^2 + 108287^2 .

It is not a de Polignac number, because 55530052805 - 2¹⁶ = 55529987269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55530052807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5553005276 + ... + 5553005285.

It is an arithmetic number, because the mean of its divisors is an integer number (16659015843).

Almost surely, 2^55530052805 is an apocalyptic number.

It is an amenable number.

55530052805 is a deficient number, since it is larger than the sum of its proper divisors (11106010567).

55530052805 is a wasteful number, since it uses less digits than its factorization.

55530052805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11106010566.

The product of its (nonzero) digits is 150000, while the sum is 38.

The spelling of 55530052805 in words is "fifty-five billion, five hundred thirty million, fifty-two thousand, eight hundred five".