55550487289 has 8 divisors (see below), whose sum is σ = 60602237280. Its totient is φ = 50499021600.

The previous prime is 55550487269. The next prime is 55550487299. The reversal of 55550487289 is 98278405555.

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 55550487289 - 2¹¹ = 55550485241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55550487269) 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, 735322 + ... + 807340.

It is an arithmetic number, because the mean of its divisors is an integer number (7575279660).

Almost surely, 2^55550487289 is an apocalyptic number.

It is an amenable number.

55550487289 is a deficient number, since it is larger than the sum of its proper divisors (5051749991).

55550487289 is a wasteful number, since it uses less digits than its factorization.

55550487289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142151.

The product of its (nonzero) digits is 20160000, while the sum is 58.

The spelling of 55550487289 in words is "fifty-five billion, five hundred fifty million, four hundred eighty-seven thousand, two hundred eighty-nine".