54538940 has 24 divisors (see below), whose sum is σ = 114791040. Its totient is φ = 21766208.

The previous prime is 54538927. The next prime is 54538997. The reversal of 54538940 is 4983545.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 54538894 and 54538903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6734 + ... + 12426.

It is an arithmetic number, because the mean of its divisors is an integer number (4782960).

Almost surely, 2^54538940 is an apocalyptic number.

It is an amenable number.

54538940 is an abundant number, since it is smaller than the sum of its proper divisors (60252100).

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

54538940 is a wasteful number, since it uses less digits than its factorization.

54538940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6181 (or 6179 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 54538940 is about 7385.0484087784. The cubic root of 54538940 is about 379.2296026164.

The spelling of 54538940 in words is "fifty-four million, five hundred thirty-eight thousand, nine hundred forty".