55406855 has 8 divisors (see below), whose sum is σ = 75986592. Its totient is φ = 37993248.

The previous prime is 55406837. The next prime is 55406863. The reversal of 55406855 is 55860455.

55406855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 55406855 - 2⁸ = 55406599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 791492 + ... + 791561.

It is an arithmetic number, because the mean of its divisors is an integer number (9498324).

Almost surely, 2^55406855 is an apocalyptic number.

55406855 is a deficient number, since it is larger than the sum of its proper divisors (20579737).

55406855 is a wasteful number, since it uses less digits than its factorization.

55406855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583065.

The product of its (nonzero) digits is 120000, while the sum is 38.

The square root of 55406855 is about 7443.5781046483. The cubic root of 55406855 is about 381.2306707033.

The spelling of 55406855 in words is "fifty-five million, four hundred six thousand, eight hundred fifty-five".