54685845 has 24 divisors (see below), whose sum is σ = 95667000. Its totient is φ = 28895616.

The previous prime is 54685843. The next prime is 54685847. The reversal of 54685845 is 54858645.

54685845 is a `hidden beast` number, since 5 + 4 + 68 + 584 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (54685843) and next prime (54685847).

It can be written as a sum of positive squares in 4 ways, for example, as 5489649 + 49196196 = 2343^2 + 7014^2 .

It is not a de Polignac number, because 54685845 - 2¹ = 54685843 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 54685845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54685843) 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 23 ways as a sum of consecutive naturals, for example, 670 + ... + 10479.

It is an arithmetic number, because the mean of its divisors is an integer number (3986125).

Almost surely, 2^54685845 is an apocalyptic number.

It is an amenable number.

54685845 is a deficient number, since it is larger than the sum of its proper divisors (40981155).

54685845 is a wasteful number, since it uses less digits than its factorization.

54685845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11269 (or 11266 counting only the distinct ones).

The product of its digits is 768000, while the sum is 45.

The square root of 54685845 is about 7394.9878296046. The cubic root of 54685845 is about 379.5697924517.

The spelling of 54685845 in words is "fifty-four million, six hundred eighty-five thousand, eight hundred forty-five".