55474662187 has 16 divisors (see below), whose sum is σ = 64767601600. Its totient is φ = 47495234304.

The previous prime is 55474662143. The next prime is 55474662227. The reversal of 55474662187 is 78126647455.

55474662187 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55474662187 - 2⁷ = 55474662059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55474612187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208603 + ... + 393019.

It is an arithmetic number, because the mean of its divisors is an integer number (4047975100).

Almost surely, 2^55474662187 is an apocalyptic number.

55474662187 is a deficient number, since it is larger than the sum of its proper divisors (9292939413).

55474662187 is an equidigital number, since it uses as much as digits as its factorization.

55474662187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185315 (or 185301 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 55.

The spelling of 55474662187 in words is "fifty-five billion, four hundred seventy-four million, six hundred sixty-two thousand, one hundred eighty-seven".