54881481 has 16 divisors (see below), whose sum is σ = 77797440. Its totient is φ = 34315200.

The previous prime is 54881441. The next prime is 54881483. The reversal of 54881481 is 18418845.

54881481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 54881481 - 2¹⁵ = 54848713 is a prime.

It is a super-2 number, since 2×54881481² = 6023953913506722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54881483) 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 15 ways as a sum of consecutive naturals, for example, 991 + ... + 10523.

It is an arithmetic number, because the mean of its divisors is an integer number (4862340).

Almost surely, 2^54881481 is an apocalyptic number.

It is an amenable number.

54881481 is a deficient number, since it is larger than the sum of its proper divisors (22915959).

54881481 is a wasteful number, since it uses less digits than its factorization.

54881481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9656.

The product of its digits is 40960, while the sum is 39.

The square root of 54881481 is about 7408.2036284109. The cubic root of 54881481 is about 380.0218847045.

The spelling of 54881481 in words is "fifty-four million, eight hundred eighty-one thousand, four hundred eighty-one".