54259979 has 4 divisors (see below), whose sum is σ = 54306360. Its totient is φ = 54213600.

The previous prime is 54259963. The next prime is 54259981. The reversal of 54259979 is 97995245.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97995245 = 5 ⋅19599049.

It is a cyclic number.

It is not a de Polignac number, because 54259979 - 2⁴ = 54259963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54250979) 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, 21389 + ... + 23790.

It is an arithmetic number, because the mean of its divisors is an integer number (13576590).

Almost surely, 2^54259979 is an apocalyptic number.

54259979 is a deficient number, since it is larger than the sum of its proper divisors (46381).

54259979 is a wasteful number, since it uses less digits than its factorization.

54259979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46380.

The product of its digits is 1020600, while the sum is 50.

The square root of 54259979 is about 7366.1373188395. The cubic root of 54259979 is about 378.5819237762.

The spelling of 54259979 in words is "fifty-four million, two hundred fifty-nine thousand, nine hundred seventy-nine".