55289315945 has 8 divisors (see below), whose sum is σ = 66436479936. Its totient is φ = 44171918896.

The previous prime is 55289315933. The next prime is 55289315987. The reversal of 55289315945 is 54951398255.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55289315945 - 2¹² = 55289311849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7437647 + ... + 7445076.

It is an arithmetic number, because the mean of its divisors is an integer number (8304559992).

Almost surely, 2^55289315945 is an apocalyptic number.

It is an amenable number.

55289315945 is a deficient number, since it is larger than the sum of its proper divisors (11147163991).

55289315945 is a wasteful number, since it uses less digits than its factorization.

55289315945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14883471.

The product of its digits is 9720000, while the sum is 56.

The spelling of 55289315945 in words is "fifty-five billion, two hundred eighty-nine million, three hundred fifteen thousand, nine hundred forty-five".