54545418 has 48 divisors (see below), whose sum is σ = 125728200. Its totient is φ = 17031168.

The previous prime is 54545389. The next prime is 54545419. The reversal of 54545418 is 81454545.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 53978409 + 567009 = 7347^2 + 753^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (54545419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121258 + ... + 121706.

Almost surely, 2^54545418 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54545418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62864100).

54545418 is an abundant number, since it is smaller than the sum of its proper divisors (71182782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54545418 is a wasteful number, since it uses less digits than its factorization.

54545418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871 (or 868 counting only the distinct ones).

The product of its digits is 64000, while the sum is 36.

The square root of 54545418 is about 7385.4869846206. The cubic root of 54545418 is about 379.2446166724.

The spelling of 54545418 in words is "fifty-four million, five hundred forty-five thousand, four hundred eighteen".