54506785 has 4 divisors (see below), whose sum is σ = 65408148. Its totient is φ = 43605424.

The previous prime is 54506783. The next prime is 54506791. The reversal of 54506785 is 58760545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58760545 = 5 ⋅11752109.

It can be written as a sum of positive squares in 2 ways, for example, as 41783296 + 12723489 = 6464^2 + 3567^2 .

It is a cyclic number.

It is not a de Polignac number, because 54506785 - 2¹ = 54506783 is a prime.

It is a super-2 number, since 2×54506785² = 5941979222072450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54506783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5450674 + ... + 5450683.

It is an arithmetic number, because the mean of its divisors is an integer number (16352037).

Almost surely, 2^54506785 is an apocalyptic number.

It is an amenable number.

54506785 is a deficient number, since it is larger than the sum of its proper divisors (10901363).

54506785 is a wasteful number, since it uses less digits than its factorization.

54506785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10901362.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 54506785 is about 7382.8710540006. The cubic root of 54506785 is about 379.1550593932.

The spelling of 54506785 in words is "fifty-four million, five hundred six thousand, seven hundred eighty-five".