54040239 has 24 divisors (see below), whose sum is σ = 87461712. Its totient is φ = 31864320.

The previous prime is 54040219. The next prime is 54040249. The reversal of 54040239 is 93204045.

It is not a de Polignac number, because 54040239 - 2⁷ = 54040111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54040219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3714 + ... + 11039.

It is an arithmetic number, because the mean of its divisors is an integer number (3644238).

Almost surely, 2^54040239 is an apocalyptic number.

54040239 is a deficient number, since it is larger than the sum of its proper divisors (33421473).

54040239 is a wasteful number, since it uses less digits than its factorization.

54040239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14807 (or 14804 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 54040239 is about 7351.2066356483. The cubic root of 54040239 is about 378.0701767750.

The spelling of 54040239 in words is "fifty-four million, forty thousand, two hundred thirty-nine".