54284621 has 4 divisors (see below), whose sum is σ = 57477852. Its totient is φ = 51091392.

The previous prime is 54284609. The next prime is 54284641. The reversal of 54284621 is 12648245.

54284621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12648245 = 5 ⋅2529649.

It can be written as a sum of positive squares in 2 ways, for example, as 48930025 + 5354596 = 6995^2 + 2314^2 .

It is not a de Polignac number, because 54284621 - 2¹⁰ = 54283597 is a prime.

It is a super-2 number, since 2×54284621² = 5893640154227282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54284641) 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 3 ways as a sum of consecutive naturals, for example, 1596590 + ... + 1596623.

It is an arithmetic number, because the mean of its divisors is an integer number (14369463).

Almost surely, 2^54284621 is an apocalyptic number.

It is an amenable number.

54284621 is a deficient number, since it is larger than the sum of its proper divisors (3193231).

54284621 is a wasteful number, since it uses less digits than its factorization.

54284621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193230.

The product of its digits is 15360, while the sum is 32.

The square root of 54284621 is about 7367.8097831038. The cubic root of 54284621 is about 378.6392257021.

The spelling of 54284621 in words is "fifty-four million, two hundred eighty-four thousand, six hundred twenty-one".