54819679 has 4 divisors (see below), whose sum is σ = 58044384. Its totient is φ = 51594976.

The previous prime is 54819643. The next prime is 54819689. The reversal of 54819679 is 97691845.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97691845 = 5 ⋅19538369.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54819679 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 (54819619) 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, 1612327 + ... + 1612360.

It is an arithmetic number, because the mean of its divisors is an integer number (14511096).

Almost surely, 2^54819679 is an apocalyptic number.

54819679 is a deficient number, since it is larger than the sum of its proper divisors (3224705).

54819679 is a wasteful number, since it uses less digits than its factorization.

54819679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3224704.

The product of its digits is 544320, while the sum is 49.

The square root of 54819679 is about 7404.0312668167. The cubic root of 54819679 is about 379.8791836603.

The spelling of 54819679 in words is "fifty-four million, eight hundred nineteen thousand, six hundred seventy-nine".