55081958399 has 8 divisors (see below), whose sum is σ = 60033720432. Its totient is φ = 50232294720.

The previous prime is 55081958369. The next prime is 55081958413. The reversal of 55081958399 is 99385918055.

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 55081958399 - 2¹⁶ = 55081892863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55081958369) 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, 25523462 + ... + 25525619.

It is an arithmetic number, because the mean of its divisors is an integer number (7504215054).

Almost surely, 2^55081958399 is an apocalyptic number.

55081958399 is a deficient number, since it is larger than the sum of its proper divisors (4951762033).

55081958399 is a wasteful number, since it uses less digits than its factorization.

55081958399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51049177.

The product of its (nonzero) digits is 17496000, while the sum is 62.

The spelling of 55081958399 in words is "fifty-five billion, eighty-one million, nine hundred fifty-eight thousand, three hundred ninety-nine".