55001108391 has 8 divisors (see below), whose sum is σ = 75316833264. Its totient is φ = 35676394560.

The previous prime is 55001108381. The next prime is 55001108453. The reversal of 55001108391 is 19380110055.

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

It is not a de Polignac number, because 55001108391 - 2¹⁹ = 55000584103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55001108381) 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, 247752630 + ... + 247752851.

It is an arithmetic number, because the mean of its divisors is an integer number (9414604158).

Almost surely, 2^55001108391 is an apocalyptic number.

55001108391 is a deficient number, since it is larger than the sum of its proper divisors (20315724873).

55001108391 is a wasteful number, since it uses less digits than its factorization.

55001108391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495505521.

The product of its (nonzero) digits is 5400, while the sum is 33.

The spelling of 55001108391 in words is "fifty-five billion, one million, one hundred eight thousand, three hundred ninety-one".