47755550447 has 4 divisors (see below), whose sum is σ = 52096964136. Its totient is φ = 43414136760.

The previous prime is 47755550419. The next prime is 47755550449. The reversal of 47755550447 is 74405555774.

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

It is a cyclic number.

It is not a de Polignac number, because 47755550447 - 2¹² = 47755546351 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 (47755550449) 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, 2170706828 + ... + 2170706849.

It is an arithmetic number, because the mean of its divisors is an integer number (13024241034).

Almost surely, 2^47755550447 is an apocalyptic number.

47755550447 is a deficient number, since it is larger than the sum of its proper divisors (4341413689).

47755550447 is a wasteful number, since it uses less digits than its factorization.

47755550447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4341413688.

The product of its (nonzero) digits is 13720000, while the sum is 53.

The spelling of 47755550447 in words is "forty-seven billion, seven hundred fifty-five million, five hundred fifty thousand, four hundred forty-seven".