54993489 has 16 divisors (see below), whose sum is σ = 75218112. Its totient is φ = 35725248.

The previous prime is 54993481. The next prime is 54993509. The reversal of 54993489 is 98439945.

It is not a de Polignac number, because 54993489 - 2³ = 54993481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54993481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23862 + ... + 26064.

It is an arithmetic number, because the mean of its divisors is an integer number (4701132).

Almost surely, 2^54993489 is an apocalyptic number.

It is an amenable number.

54993489 is a deficient number, since it is larger than the sum of its proper divisors (20224623).

54993489 is a wasteful number, since it uses less digits than its factorization.

54993489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2416.

The product of its digits is 1399680, while the sum is 51.

The square root of 54993489 is about 7415.7595025729. The cubic root of 54993489 is about 380.2802388030.

The spelling of 54993489 in words is "fifty-four million, nine hundred ninety-three thousand, four hundred eighty-nine".