54249009 has 16 divisors (see below), whose sum is σ = 76308480. Its totient is φ = 34186320.

The previous prime is 54248983. The next prime is 54249031. The reversal of 54249009 is 90094245.

It is not a de Polignac number, because 54249009 - 2¹¹ = 54246961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54249079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36144 + ... + 37614.

It is an arithmetic number, because the mean of its divisors is an integer number (4769280).

Almost surely, 2^54249009 is an apocalyptic number.

It is an amenable number.

54249009 is a deficient number, since it is larger than the sum of its proper divisors (22059471).

54249009 is a wasteful number, since it uses less digits than its factorization.

54249009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 54249009 is about 7365.3926575574. The cubic root of 54249009 is about 378.5564088160.

The spelling of 54249009 in words is "fifty-four million, two hundred forty-nine thousand, nine".