54028481 has 4 divisors (see below), whose sum is σ = 58184532. Its totient is φ = 49872432.

The previous prime is 54028477. The next prime is 54028487. The reversal of 54028481 is 18482045.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 10137856 + 43890625 = 3184^2 + 6625^2 .

It is a cyclic number.

It is not a de Polignac number, because 54028481 - 2² = 54028477 is a prime.

It is a super-2 number, since 2×54028481² = 5838153518334722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54028487) by changing a digit.

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, 2078006 + ... + 2078031.

It is an arithmetic number, because the mean of its divisors is an integer number (14546133).

Almost surely, 2^54028481 is an apocalyptic number.

It is an amenable number.

54028481 is a deficient number, since it is larger than the sum of its proper divisors (4156051).

54028481 is a wasteful number, since it uses less digits than its factorization.

54028481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4156050.

The product of its (nonzero) digits is 10240, while the sum is 32.

The square root of 54028481 is about 7350.4068594874. The cubic root of 54028481 is about 378.0427547918.

The spelling of 54028481 in words is "fifty-four million, twenty-eight thousand, four hundred eighty-one".