54278073 has 8 divisors (see below), whose sum is σ = 80412000. Its totient is φ = 36185364.

The previous prime is 54278071. The next prime is 54278089. The reversal of 54278073 is 37087245.

It is not a de Polignac number, because 54278073 - 2¹ = 54278071 is a prime.

It is a super-2 number, since 2×54278073² = 5892218417186658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54278071) 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, 1005123 + ... + 1005176.

It is an arithmetic number, because the mean of its divisors is an integer number (10051500).

Almost surely, 2^54278073 is an apocalyptic number.

It is an amenable number.

54278073 is a deficient number, since it is larger than the sum of its proper divisors (26133927).

54278073 is a wasteful number, since it uses less digits than its factorization.

54278073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010308 (or 2010302 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 54278073 is about 7367.3654042677. The cubic root of 54278073 is about 378.6240008293.

The spelling of 54278073 in words is "fifty-four million, two hundred seventy-eight thousand, seventy-three".