5581953 has 56 divisors (see below), whose sum is σ = 9793280. Its totient is φ = 3149280.

The previous prime is 5581937. The next prime is 5581963. The reversal of 5581953 is 3591855.

It is a happy number.

It is not a de Polignac number, because 5581953 - 2⁴ = 5581937 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5581963) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 180048 + ... + 180078.

It is an arithmetic number, because the mean of its divisors is an integer number (174880).

Almost surely, 2^5581953 is an apocalyptic number.

It is an amenable number.

5581953 is a deficient number, since it is larger than the sum of its proper divisors (4211327).

5581953 is a wasteful number, since it uses less digits than its factorization.

5581953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 66 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The square root of 5581953 is about 2362.6157114520. The cubic root of 5581953 is about 177.3898331127.

The spelling of 5581953 in words is "five million, five hundred eighty-one thousand, nine hundred fifty-three".