54543418 has 4 divisors (see below), whose sum is σ = 81815130. Its totient is φ = 27271708.

The previous prime is 54543409. The next prime is 54543421. The reversal of 54543418 is 81434545.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81434545 = 5 ⋅16286909.

It can be written as a sum of positive squares in only one way, i.e., 46607929 + 7935489 = 6827^2 + 2817^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13635853 + ... + 13635856.

Almost surely, 2^54543418 is an apocalyptic number.

54543418 is a deficient number, since it is larger than the sum of its proper divisors (27271712).

54543418 is a wasteful number, since it uses less digits than its factorization.

54543418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27271711.

The product of its digits is 38400, while the sum is 34.

The square root of 54543418 is about 7385.3515826939. The cubic root of 54543418 is about 379.2399814007.

The spelling of 54543418 in words is "fifty-four million, five hundred forty-three thousand, four hundred eighteen".