54042989 has 24 divisors (see below), whose sum is σ = 72977472. Its totient is φ = 38862720.

The previous prime is 54042941. The next prime is 54042991. The reversal of 54042989 is 98924045.

54042989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54042989 - 2⁸ = 54042733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54042929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10937 + ... + 15089.

It is an arithmetic number, because the mean of its divisors is an integer number (3040728).

Almost surely, 2^54042989 is an apocalyptic number.

It is an amenable number.

54042989 is a deficient number, since it is larger than the sum of its proper divisors (18934483).

54042989 is a wasteful number, since it uses less digits than its factorization.

54042989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4197 (or 4184 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 54042989 is about 7351.3936773921. The cubic root of 54042989 is about 378.0765897453.

The spelling of 54042989 in words is "fifty-four million, forty-two thousand, nine hundred eighty-nine".