54521366 has 4 divisors (see below), whose sum is σ = 81782052. Its totient is φ = 27260682.

The previous prime is 54521359. The next prime is 54521399. The reversal of 54521366 is 66312545.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 13630340 + ... + 13630343.

It is an arithmetic number, because the mean of its divisors is an integer number (20445513).

Almost surely, 2^54521366 is an apocalyptic number.

54521366 is a deficient number, since it is larger than the sum of its proper divisors (27260686).

54521366 is a wasteful number, since it uses less digits than its factorization.

54521366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27260685.

The product of its digits is 21600, while the sum is 32.

The square root of 54521366 is about 7383.8584764336. The cubic root of 54521366 is about 379.1888653804.

The spelling of 54521366 in words is "fifty-four million, five hundred twenty-one thousand, three hundred sixty-six".