54845489 has 4 divisors (see below), whose sum is σ = 54861924. Its totient is φ = 54829056.

The previous prime is 54845477. The next prime is 54845491. The reversal of 54845489 is 98454845.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21298225 + 33547264 = 4615^2 + 5792^2 .

It is a cyclic number.

It is not a de Polignac number, because 54845489 - 2⁴ = 54845473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54841489) 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, 1232 + ... + 10545.

It is an arithmetic number, because the mean of its divisors is an integer number (13715481).

Almost surely, 2^54845489 is an apocalyptic number.

It is an amenable number.

54845489 is a deficient number, since it is larger than the sum of its proper divisors (16435).

54845489 is a wasteful number, since it uses less digits than its factorization.

54845489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16434.

The product of its digits is 921600, while the sum is 47.

The square root of 54845489 is about 7405.7740311192. The cubic root of 54845489 is about 379.9387920806.

The spelling of 54845489 in words is "fifty-four million, eight hundred forty-five thousand, four hundred eighty-nine".