5581023 has 16 divisors (see below), whose sum is σ = 8779776. Its totient is φ = 3085920.

The previous prime is 5581001. The next prime is 5581027. The reversal of 5581023 is 3201855.

It is not a de Polignac number, because 5581023 - 2⁸ = 5580767 is a prime.

It is a super-2 number, since 2×5581023² = 62295635453058, which contains 22 as substring.

5581023 is a modest number, since divided by 1023 gives 558 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 5580984 and 5581002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5581027) 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, 3636 + ... + 4937.

It is an arithmetic number, because the mean of its divisors is an integer number (548736).

Almost surely, 2^5581023 is an apocalyptic number.

5581023 is a deficient number, since it is larger than the sum of its proper divisors (3198753).

5581023 is a wasteful number, since it uses less digits than its factorization.

5581023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8614.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 5581023 is about 2362.4188874965. The cubic root of 5581023 is about 177.3799810228.

Adding to 5581023 its reverse (3201855), we get a palindrome (8782878).

The spelling of 5581023 in words is "five million, five hundred eighty-one thousand, twenty-three".