5913581 has 4 divisors (see below), whose sum is σ = 6025212. Its totient is φ = 5801952.

The previous prime is 5913571. The next prime is 5913601. The reversal of 5913581 is 1853195.

5913581 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2920681 + 2992900 = 1709^2 + 1730^2 .

It is a cyclic number.

It is not a de Polignac number, because 5913581 - 2⁶ = 5913517 is a prime.

It is a super-2 number, since 2×5913581² = 69940880487122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5913521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55736 + ... + 55841.

It is an arithmetic number, because the mean of its divisors is an integer number (1506303).

Almost surely, 2^5913581 is an apocalyptic number.

It is an amenable number.

5913581 is a deficient number, since it is larger than the sum of its proper divisors (111631).

5913581 is a wasteful number, since it uses less digits than its factorization.

5913581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111630.

The product of its digits is 5400, while the sum is 32.

The square root of 5913581 is about 2431.7855579800. The cubic root of 5913581 is about 180.8354272636.

The spelling of 5913581 in words is "five million, nine hundred thirteen thousand, five hundred eighty-one".