54040538 has 8 divisors (see below), whose sum is σ = 81150132. Its totient is φ = 26990496.

The previous prime is 54040537. The next prime is 54040561. The reversal of 54040538 is 83504045.

It can be written as a sum of positive squares in 2 ways, for example, as 51739249 + 2301289 = 7193^2 + 1517^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 54040538.

It is not an unprimeable number, because it can be changed into a prime (54040537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12545 + ... + 16292.

Almost surely, 2^54040538 is an apocalyptic number.

54040538 is a deficient number, since it is larger than the sum of its proper divisors (27109594).

54040538 is a wasteful number, since it uses less digits than its factorization.

54040538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29776.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 54040538 is about 7351.2269724176. The cubic root of 54040538 is about 378.0708740503.

The spelling of 54040538 in words is "fifty-four million, forty thousand, five hundred thirty-eight".