5809572 has 18 divisors (see below), whose sum is σ = 14685398. Its totient is φ = 1936512.

The previous prime is 5809571. The next prime is 5809589. The reversal of 5809572 is 2759085.

5809572 is a `hidden beast` number, since 5 + 80 + 9 + 572 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5788836 + 20736 = 2406^2 + 144^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×5809572² = 67502253646368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 161377 = 5809572 / (5 + 8 + 0 + 9 + 5 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (5809571) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80653 + ... + 80724.

Almost surely, 2^5809572 is an apocalyptic number.

It is an amenable number.

5809572 is an abundant number, since it is smaller than the sum of its proper divisors (8875826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5809572 is a wasteful number, since it uses less digits than its factorization.

5809572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161387 (or 161382 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 5809572 is about 2410.3053748436. The cubic root of 5809572 is about 179.7689628408.

The spelling of 5809572 in words is "five million, eight hundred nine thousand, five hundred seventy-two".