55490392147 has 8 divisors (see below), whose sum is σ = 55865908800. Its totient is φ = 55116070464.

The previous prime is 55490392129. The next prime is 55490392151. The reversal of 55490392147 is 74129309455.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55490392147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55490392147.

It is not an unprimeable number, because it can be changed into a prime (55490392157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205458 + ... + 391399.

It is an arithmetic number, because the mean of its divisors is an integer number (6983238600).

Almost surely, 2^55490392147 is an apocalyptic number.

55490392147 is a deficient number, since it is larger than the sum of its proper divisors (375516653).

55490392147 is a wasteful number, since it uses less digits than its factorization.

55490392147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597485.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 55490392147 in words is "fifty-five billion, four hundred ninety million, three hundred ninety-two thousand, one hundred forty-seven".