54138512 has 20 divisors (see below), whose sum is σ = 105162540. Its totient is φ = 26999808.

The previous prime is 54138509. The next prime is 54138521. The reversal of 54138512 is 21583145.

It can be written as a sum of positive squares in 2 ways, for example, as 45751696 + 8386816 = 6764^2 + 2896^2 .

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 3 ways as a sum of consecutive naturals, for example, 2408 + ... + 10680.

It is an arithmetic number, because the mean of its divisors is an integer number (5258127).

Almost surely, 2^54138512 is an apocalyptic number.

It is an amenable number.

54138512 is a deficient number, since it is larger than the sum of its proper divisors (51024028).

54138512 is a wasteful number, since it uses less digits than its factorization.

54138512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8690 (or 8684 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 54138512 is about 7357.8877403777. The cubic root of 54138512 is about 378.2992134591.

The spelling of 54138512 in words is "fifty-four million, one hundred thirty-eight thousand, five hundred twelve".