5781567 has 16 divisors (see below), whose sum is σ = 8853120. Its totient is φ = 3319200.

The previous prime is 5781553. The next prime is 5781569. The reversal of 5781567 is 7651875.

It is not a de Polignac number, because 5781567 - 2⁷ = 5781439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5781569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3984 + ... + 5237.

It is an arithmetic number, because the mean of its divisors is an integer number (553320).

Almost surely, 2^5781567 is an apocalyptic number.

5781567 is a gapful number since it is divisible by the number (57) formed by its first and last digit.

5781567 is a deficient number, since it is larger than the sum of its proper divisors (3071553).

5781567 is a wasteful number, since it uses less digits than its factorization.

5781567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9254.

The product of its digits is 58800, while the sum is 39.

The square root of 5781567 is about 2404.4889269864. The cubic root of 5781567 is about 179.4796391169.

It can be divided in two parts, 578 and 1567, that added together give a triangular number (2145 = T₆₅).

The spelling of 5781567 in words is "five million, seven hundred eighty-one thousand, five hundred sixty-seven".