5580981 has 48 divisors (see below), whose sum is σ = 10168704. Its totient is φ = 2985984.

The previous prime is 5580979. The next prime is 5581001. The reversal of 5580981 is 1890855.

It is not a de Polignac number, because 5580981 - 2¹ = 5580979 is a prime.

It is a super-2 number, since 2×5580981² = 62294697844722, which contains 22 as substring.

It is an Ulam number.

5580981 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5580901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28821 + ... + 29013.

It is an arithmetic number, because the mean of its divisors is an integer number (211848).

Almost surely, 2^5580981 is an apocalyptic number.

5580981 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5580981 is a deficient number, since it is larger than the sum of its proper divisors (4587723).

5580981 is a wasteful number, since it uses less digits than its factorization.

5580981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The square root of 5580981 is about 2362.4099982856. The cubic root of 5580981 is about 177.3795360639.

It can be divided in two parts, 5580 and 981, that added together give a 8-th power (6561 = 3⁸).

The spelling of 5580981 in words is "five million, five hundred eighty thousand, nine hundred eighty-one".