55505055611047 has 4 divisors (see below), whose sum is σ = 63434349269776. Its totient is φ = 47575761952320.

The previous prime is 55505055611041. The next prime is 55505055611053. The reversal of 55505055611047 is 74011655050555.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (55505055611041) and next prime (55505055611053).

It is not a de Polignac number, because 55505055611047 - 2³ = 55505055611039 is a prime.

It is a super-2 number, since 2×55505055611047² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55505055611041) 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, 3964646829354 + ... + 3964646829367.

It is an arithmetic number, because the mean of its divisors is an integer number (15858587317444).

Almost surely, 2^{55505055611047} is an apocalyptic number.

55505055611047 is a deficient number, since it is larger than the sum of its proper divisors (7929293658729).

55505055611047 is an equidigital number, since it uses as much as digits as its factorization.

55505055611047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7929293658728.

The product of its (nonzero) digits is 2625000, while the sum is 49.

The spelling of 55505055611047 in words is "fifty-five trillion, five hundred five billion, fifty-five million, six hundred eleven thousand, forty-seven".