55840855 has 8 divisors (see below), whose sum is σ = 76581792. Its totient is φ = 38290848.

The previous prime is 55840843. The next prime is 55840859. The reversal of 55840855 is 55804855.

55840855 is nontrivially palindromic in base 4.

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 55840855 - 2¹¹ = 55838807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55840859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797692 + ... + 797761.

It is an arithmetic number, because the mean of its divisors is an integer number (9572724).

Almost surely, 2^55840855 is an apocalyptic number.

55840855 is a deficient number, since it is larger than the sum of its proper divisors (20740937).

55840855 is a wasteful number, since it uses less digits than its factorization.

55840855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595465.

The product of its (nonzero) digits is 160000, while the sum is 40.

The square root of 55840855 is about 7472.6738855647. The cubic root of 55840855 is about 382.2234719396.

The spelling of 55840855 in words is "fifty-five million, eight hundred forty thousand, eight hundred fifty-five".