54218945 has 8 divisors (see below), whose sum is σ = 70977600. Its totient is φ = 39431920.

The previous prime is 54218929. The next prime is 54218953. The reversal of 54218945 is 54981245.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54218945 - 2⁴ = 54218929 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 54218899 and 54218908.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492845 + ... + 492954.

It is an arithmetic number, because the mean of its divisors is an integer number (8872200).

Almost surely, 2^54218945 is an apocalyptic number.

54218945 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

54218945 is a deficient number, since it is larger than the sum of its proper divisors (16758655).

54218945 is a wasteful number, since it uses less digits than its factorization.

54218945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985815.

The product of its digits is 57600, while the sum is 38.

The square root of 54218945 is about 7363.3514787765. The cubic root of 54218945 is about 378.4864657694.

The spelling of 54218945 in words is "fifty-four million, two hundred eighteen thousand, nine hundred forty-five".