5265581 has 8 divisors (see below), whose sum is σ = 5498904. Its totient is φ = 5037120.

The previous prime is 5265571. The next prime is 5265583. The reversal of 5265581 is 1855625.

It can be written as a sum of positive squares in 4 ways, for example, as 292681 + 4972900 = 541^2 + 2230^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5265581 - 2⁶ = 5265517 is a prime.

It is a super-2 number, since 2×5265581² = 55452686535122, 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 (5265583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1091 + ... + 3423.

It is an arithmetic number, because the mean of its divisors is an integer number (687363).

Almost surely, 2^5265581 is an apocalyptic number.

It is an amenable number.

5265581 is a deficient number, since it is larger than the sum of its proper divisors (233323).

5265581 is a wasteful number, since it uses less digits than its factorization.

5265581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2431.

The product of its digits is 12000, while the sum is 32.

The square root of 5265581 is about 2294.6853814848. The cubic root of 5265581 is about 173.9730988491.

The spelling of 5265581 in words is "five million, two hundred sixty-five thousand, five hundred eighty-one".