55086902191 has 8 divisors (see below), whose sum is σ = 55296879920. Its totient is φ = 54877004928.

The previous prime is 55086902137. The next prime is 55086902239. The reversal of 55086902191 is 19120968055.

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 55086902191 - 2¹³ = 55086893999 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 (55086942191) 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, 1597015 + ... + 1631143.

It is an arithmetic number, because the mean of its divisors is an integer number (6912109990).

Almost surely, 2^55086902191 is an apocalyptic number.

55086902191 is a deficient number, since it is larger than the sum of its proper divisors (209977729).

55086902191 is a wasteful number, since it uses less digits than its factorization.

55086902191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40233.

The product of its (nonzero) digits is 194400, while the sum is 46.

The spelling of 55086902191 in words is "fifty-five billion, eighty-six million, nine hundred two thousand, one hundred ninety-one".