54678019 has 4 divisors (see below), whose sum is σ = 59648760. Its totient is φ = 49707280.

The previous prime is 54678011. The next prime is 54678031. The reversal of 54678019 is 91087645.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54678019 - 2³ = 54678011 is a prime.

It is a super-2 number, since 2×54678019² = 5979371523528722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54678011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2485354 + ... + 2485375.

It is an arithmetic number, because the mean of its divisors is an integer number (14912190).

Almost surely, 2^54678019 is an apocalyptic number.

54678019 is a deficient number, since it is larger than the sum of its proper divisors (4970741).

54678019 is a wasteful number, since it uses less digits than its factorization.

54678019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4970740.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 54678019 is about 7394.4586684895. The cubic root of 54678019 is about 379.5516850548.

The spelling of 54678019 in words is "fifty-four million, six hundred seventy-eight thousand, nineteen".