54578239 has 4 divisors (see below), whose sum is σ = 55088424. Its totient is φ = 54068056.

The previous prime is 54578221. The next prime is 54578243. The reversal of 54578239 is 93287545.

54578239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54578239 is a prime.

It is a super-2 number, since 2×54578239² = 5957568344682242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 54578195 and 54578204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54578299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254932 + ... + 255145.

It is an arithmetic number, because the mean of its divisors is an integer number (13772106).

Almost surely, 2^54578239 is an apocalyptic number.

54578239 is a deficient number, since it is larger than the sum of its proper divisors (510185).

54578239 is a wasteful number, since it uses less digits than its factorization.

54578239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510184.

The product of its digits is 302400, while the sum is 43.

The square root of 54578239 is about 7387.7086434158. The cubic root of 54578239 is about 379.3206676179.

The spelling of 54578239 in words is "fifty-four million, five hundred seventy-eight thousand, two hundred thirty-nine".