54281583 has 12 divisors (see below), whose sum is σ = 81311048. Its totient is φ = 36187560.

The previous prime is 54281573. The next prime is 54281603. The reversal of 54281583 is 38518245.

It is a happy number.

54281583 is a `hidden beast` number, since 54 + 28 + 1 + 583 = 666.

It is not a de Polignac number, because 54281583 - 2⁵ = 54281551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54281503) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111448 + ... + 111933.

Almost surely, 2^54281583 is an apocalyptic number.

54281583 is a deficient number, since it is larger than the sum of its proper divisors (27029465).

54281583 is an equidigital number, since it uses as much as digits as its factorization.

54281583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223396 (or 223384 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 54281583 is about 7367.6036131160. The cubic root of 54281583 is about 378.6321621458.

The spelling of 54281583 in words is "fifty-four million, two hundred eighty-one thousand, five hundred eighty-three".