54538939 has 16 divisors (see below), whose sum is σ = 67298560. Its totient is φ = 43040160.

The previous prime is 54538927. The next prime is 54538997. The reversal of 54538939 is 93983545.

It is a happy number.

54538939 is nontrivially palindromic in base 9.

It is a cyclic number.

It is not a de Polignac number, because 54538939 - 2⁹ = 54538427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54538909) 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, 66844 + ... + 67654.

It is an arithmetic number, because the mean of its divisors is an integer number (4206160).

Almost surely, 2^54538939 is an apocalyptic number.

54538939 is a deficient number, since it is larger than the sum of its proper divisors (12759621).

54538939 is a wasteful number, since it uses less digits than its factorization.

54538939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570.

The product of its digits is 583200, while the sum is 46.

The square root of 54538939 is about 7385.0483410740. The cubic root of 54538939 is about 379.2296002986.

The spelling of 54538939 in words is "fifty-four million, five hundred thirty-eight thousand, nine hundred thirty-nine".