54288281 has 4 divisors (see below), whose sum is σ = 54848052. Its totient is φ = 53728512.

The previous prime is 54288277. The next prime is 54288307. The reversal of 54288281 is 18288245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18288245 = 5 ⋅3657649.

It can be written as a sum of positive squares in 2 ways, for example, as 44622400 + 9665881 = 6680^2 + 3109^2 .

It is a cyclic number.

It is not a de Polignac number, because 54288281 - 2² = 54288277 is a prime.

It is a super-2 number, since 2×54288281² = 5894434907869922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54288581) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279740 + ... + 279933.

It is an arithmetic number, because the mean of its divisors is an integer number (13712013).

Almost surely, 2^54288281 is an apocalyptic number.

It is an amenable number.

54288281 is a deficient number, since it is larger than the sum of its proper divisors (559771).

54288281 is an equidigital number, since it uses as much as digits as its factorization.

54288281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559770.

The product of its digits is 40960, while the sum is 38.

The square root of 54288281 is about 7368.0581566652. The cubic root of 54288281 is about 378.6477351006.

The spelling of 54288281 in words is "fifty-four million, two hundred eighty-eight thousand, two hundred eighty-one".