54239879 has 4 divisors (see below), whose sum is σ = 54293520. Its totient is φ = 54186240.

The previous prime is 54239873. The next prime is 54239881. The reversal of 54239879 is 97893245.

It is a happy number.

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 54239879 - 2¹⁶ = 54174343 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 (54239873) 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, 25274 + ... + 27335.

It is an arithmetic number, because the mean of its divisors is an integer number (13573380).

Almost surely, 2^54239879 is an apocalyptic number.

54239879 is a deficient number, since it is larger than the sum of its proper divisors (53641).

54239879 is a wasteful number, since it uses less digits than its factorization.

54239879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53640.

The product of its digits is 544320, while the sum is 47.

The square root of 54239879 is about 7364.7728410318. The cubic root of 54239879 is about 378.5351708617.

The spelling of 54239879 in words is "fifty-four million, two hundred thirty-nine thousand, eight hundred seventy-nine".