5263581 has 4 divisors (see below), whose sum is σ = 7018112. Its totient is φ = 3509052.

The previous prime is 5263579. The next prime is 5263597. The reversal of 5263581 is 1853625.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5263581 - 2¹ = 5263579 is a prime.

It is a super-2 number, since 2×5263581² = 55410569887122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5263541) 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, 877261 + ... + 877266.

It is an arithmetic number, because the mean of its divisors is an integer number (1754528).

Almost surely, 2^5263581 is an apocalyptic number.

It is an amenable number.

5263581 is a deficient number, since it is larger than the sum of its proper divisors (1754531).

5263581 is a wasteful number, since it uses less digits than its factorization.

5263581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754530.

The product of its digits is 7200, while the sum is 30.

The square root of 5263581 is about 2294.2495505067. The cubic root of 5263581 is about 173.9510696080.

The spelling of 5263581 in words is "five million, two hundred sixty-three thousand, five hundred eighty-one".