5618481 has 16 divisors (see below), whose sum is σ = 8268480. Its totient is φ = 3365120.

The previous prime is 5618479. The next prime is 5618491. The reversal of 5618481 is 1848165.

It is not a de Polignac number, because 5618481 - 2¹ = 5618479 is a prime.

It is a super-2 number, since 2×5618481² = 63134657494722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5618441) 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, 1981 + ... + 3893.

It is an arithmetic number, because the mean of its divisors is an integer number (516780).

Almost surely, 2^5618481 is an apocalyptic number.

It is an amenable number.

5618481 is a deficient number, since it is larger than the sum of its proper divisors (2649999).

5618481 is a wasteful number, since it uses less digits than its factorization.

5618481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016.

The product of its digits is 7680, while the sum is 33.

The square root of 5618481 is about 2370.3335208363. Note that the first 3 decimals coincide. The cubic root of 5618481 is about 177.7759352963.

It can be divided in two parts, 56184 and 81, that added together give a palindrome (56265).

The spelling of 5618481 in words is "five million, six hundred eighteen thousand, four hundred eighty-one".