54511538 has 4 divisors (see below), whose sum is σ = 81767310. Its totient is φ = 27255768.

The previous prime is 54511531. The next prime is 54511559. The reversal of 54511538 is 83511545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 43335889 + 11175649 = 6583^2 + 3343^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54511531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13627883 + ... + 13627886.

Almost surely, 2^54511538 is an apocalyptic number.

54511538 is a deficient number, since it is larger than the sum of its proper divisors (27255772).

54511538 is a wasteful number, since it uses less digits than its factorization.

54511538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27255771.

The product of its digits is 12000, while the sum is 32.

The square root of 54511538 is about 7383.1929407269. The cubic root of 54511538 is about 379.1660798660.

The spelling of 54511538 in words is "fifty-four million, five hundred eleven thousand, five hundred thirty-eight".