55505201947 has 8 divisors (see below), whose sum is σ = 60531477440. Its totient is φ = 50587018560.

The previous prime is 55505201911. The next prime is 55505201951. The reversal of 55505201947 is 74910250555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55505201947 - 2⁷ = 55505201819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55505201957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27021954 + ... + 27024007.

It is an arithmetic number, because the mean of its divisors is an integer number (7566434680).

Almost surely, 2^55505201947 is an apocalyptic number.

55505201947 is a deficient number, since it is larger than the sum of its proper divisors (5026275493).

55505201947 is a wasteful number, since it uses less digits than its factorization.

55505201947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54046053.

The product of its (nonzero) digits is 315000, while the sum is 43.

The spelling of 55505201947 in words is "fifty-five billion, five hundred five million, two hundred one thousand, nine hundred forty-seven".