54455481 has 6 divisors (see below), whose sum is σ = 78657930. Its totient is φ = 36303648.

The previous prime is 54455461. The next prime is 54455483. The reversal of 54455481 is 18455445.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 47485881 + 6969600 = 6891^2 + 2640^2 .

It is not a de Polignac number, because 54455481 - 2⁵ = 54455449 is a prime.

It is a super-2 number, since 2×54455481² = 5930798821882722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54455483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3025296 + ... + 3025313.

It is an arithmetic number, because the mean of its divisors is an integer number (13109655).

Almost surely, 2^54455481 is an apocalyptic number.

It is an amenable number.

54455481 is a deficient number, since it is larger than the sum of its proper divisors (24202449).

54455481 is a wasteful number, since it uses less digits than its factorization.

54455481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6050615 (or 6050612 counting only the distinct ones).

The product of its digits is 64000, while the sum is 36.

The square root of 54455481 is about 7379.3957069668. The cubic root of 54455481 is about 379.0360633366.

Subtracting from 54455481 its sum of digits (36), we obtain a palindrome (54455445).

It can be divided in two parts, 54 and 455481, that added together give a triangular number (455535 = T₉₅₄).

The spelling of 54455481 in words is "fifty-four million, four hundred fifty-five thousand, four hundred eighty-one".