54855405 has 24 divisors (see below), whose sum is σ = 103727520. Its totient is φ = 26596320.

The previous prime is 54855403. The next prime is 54855407. The reversal of 54855405 is 50455845.

54855405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (54855403) and next prime (54855407).

It is not a de Polignac number, because 54855405 - 2¹ = 54855403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54855405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54855403) 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 23 ways as a sum of consecutive naturals, for example, 54915 + ... + 55904.

It is an arithmetic number, because the mean of its divisors is an integer number (4321980).

Almost surely, 2^54855405 is an apocalyptic number.

54855405 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54855405 is a deficient number, since it is larger than the sum of its proper divisors (48872115).

54855405 is a wasteful number, since it uses less digits than its factorization.

54855405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110841 (or 110838 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 36.

The square root of 54855405 is about 7406.4434784855. The cubic root of 54855405 is about 379.9616881966.

The spelling of 54855405 in words is "fifty-four million, eight hundred fifty-five thousand, four hundred five".