55840117081 has 8 divisors (see below), whose sum is σ = 63829308224. Its totient is φ = 47853933840.

The previous prime is 55840117031. The next prime is 55840117097. The reversal of 55840117081 is 18071104855.

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 55840117081 - 2¹³ = 55840108889 is a prime.

It is a super-2 number, since 2×55840117081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55840117031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 712050 + ... + 786571.

It is an arithmetic number, because the mean of its divisors is an integer number (7978663528).

Almost surely, 2^55840117081 is an apocalyptic number.

It is an amenable number.

55840117081 is a deficient number, since it is larger than the sum of its proper divisors (7989191143).

55840117081 is a wasteful number, since it uses less digits than its factorization.

55840117081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503951.

The product of its (nonzero) digits is 44800, while the sum is 40.

The spelling of 55840117081 in words is "fifty-five billion, eight hundred forty million, one hundred seventeen thousand, eighty-one".