55583639147 has 4 divisors (see below), whose sum is σ = 56366507376. Its totient is φ = 54800770920.

The previous prime is 55583639143. The next prime is 55583639171. The reversal of 55583639147 is 74193638555.

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 55583639147 - 2² = 55583639143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55583639092 and 55583639101.

It is not an unprimeable number, because it can be changed into a prime (55583639143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 391434008 + ... + 391434149.

It is an arithmetic number, because the mean of its divisors is an integer number (14091626844).

Almost surely, 2^55583639147 is an apocalyptic number.

55583639147 is a deficient number, since it is larger than the sum of its proper divisors (782868229).

55583639147 is an equidigital number, since it uses as much as digits as its factorization.

55583639147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782868228.

The product of its digits is 13608000, while the sum is 56.

The spelling of 55583639147 in words is "fifty-five billion, five hundred eighty-three million, six hundred thirty-nine thousand, one hundred forty-seven".