54636138 has 12 divisors (see below), whose sum is σ = 118378338. Its totient is φ = 18212040.

The previous prime is 54636119. The next prime is 54636139. The reversal of 54636138 is 83163645.

54636138 is a `hidden beast` number, since 5 + 4 + 636 + 13 + 8 = 666.

54636138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 54508689 + 127449 = 7383^2 + 357^2 .

It is not an unprimeable number, because it can be changed into a prime (54636139) 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 5 ways as a sum of consecutive naturals, for example, 1517653 + ... + 1517688.

Almost surely, 2^54636138 is an apocalyptic number.

54636138 is an abundant number, since it is smaller than the sum of its proper divisors (63742200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54636138 is a wasteful number, since it uses less digits than its factorization.

54636138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3035349 (or 3035346 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 54636138 is about 7391.6262080817. The cubic root of 54636138 is about 379.4547535718.

The spelling of 54636138 in words is "fifty-four million, six hundred thirty-six thousand, one hundred thirty-eight".