54855845 has 8 divisors (see below), whose sum is σ = 71811360. Its totient is φ = 39895120.

The previous prime is 54855841. The next prime is 54855877.

54855845 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54855845 - 2² = 54855841 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 54855796 and 54855805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54855841) 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, 498635 + ... + 498744.

It is an arithmetic number, because the mean of its divisors is an integer number (8976420).

Almost surely, 2^54855845 is an apocalyptic number.

54855845 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54855845 is a deficient number, since it is larger than the sum of its proper divisors (16955515).

54855845 is a wasteful number, since it uses less digits than its factorization.

54855845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997395.

The product of its digits is 640000, while the sum is 44.

The square root of 54855845 is about 7406.4731822913. The cubic root of 54855845 is about 379.9627040959.

The spelling of 54855845 in words is "fifty-four million, eight hundred fifty-five thousand, eight hundred forty-five".