55264081809 has 4 divisors (see below), whose sum is σ = 73685442416. Its totient is φ = 36842721204.

The previous prime is 55264081801. The next prime is 55264081811. The reversal of 55264081809 is 90818046255.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55264081809 - 2³ = 55264081801 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55264081801) 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, 9210680299 + ... + 9210680304.

It is an arithmetic number, because the mean of its divisors is an integer number (18421360604).

Almost surely, 2^55264081809 is an apocalyptic number.

It is an amenable number.

55264081809 is a deficient number, since it is larger than the sum of its proper divisors (18421360607).

55264081809 is a wasteful number, since it uses less digits than its factorization.

55264081809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18421360606.

The product of its (nonzero) digits is 691200, while the sum is 48.

The spelling of 55264081809 in words is "fifty-five billion, two hundred sixty-four million, eighty-one thousand, eight hundred nine".