54881679 has 4 divisors (see below), whose sum is σ = 73175576. Its totient is φ = 36587784.

The previous prime is 54881669. The next prime is 54881681. The reversal of 54881679 is 97618845.

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

It is not a de Polignac number, because 54881679 - 2⁷ = 54881551 is a prime.

It is a super-3 number, since 3×54881679³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54881669) 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, 9146944 + ... + 9146949.

It is an arithmetic number, because the mean of its divisors is an integer number (18293894).

Almost surely, 2^54881679 is an apocalyptic number.

54881679 is a deficient number, since it is larger than the sum of its proper divisors (18293897).

54881679 is a wasteful number, since it uses less digits than its factorization.

54881679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18293896.

The product of its digits is 483840, while the sum is 48.

The square root of 54881679 is about 7408.2169919624. The cubic root of 54881679 is about 380.0223417150.

The spelling of 54881679 in words is "fifty-four million, eight hundred eighty-one thousand, six hundred seventy-nine".