54278845 has 8 divisors (see below), whose sum is σ = 65239776. Its totient is φ = 43352976.

The previous prime is 54278831. The next prime is 54278849. The reversal of 54278845 is 54887245.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 54278845 - 2⁷ = 54278717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54278849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5227 + ... + 11656.

It is an arithmetic number, because the mean of its divisors is an integer number (8154972).

Almost surely, 2^54278845 is an apocalyptic number.

It is an amenable number.

54278845 is a deficient number, since it is larger than the sum of its proper divisors (10960931).

54278845 is a wasteful number, since it uses less digits than its factorization.

54278845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17531.

The product of its digits is 358400, while the sum is 43.

The square root of 54278845 is about 7367.4177973018. The cubic root of 54278845 is about 378.6257958841.

Subtracting 54278845 from its reverse (54887245), we obtain a square (608400 = 780²).

The spelling of 54278845 in words is "fifty-four million, two hundred seventy-eight thousand, eight hundred forty-five".