5721591 has 16 divisors (see below), whose sum is σ = 7888608. Its totient is φ = 3686400.

The previous prime is 5721589. The next prime is 5721593. The reversal of 5721591 is 1951275.

5721591 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (5721589) and next prime (5721593).

It is not a de Polignac number, because 5721591 - 2¹ = 5721589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5721593) 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, 22135 + ... + 22391.

It is an arithmetic number, because the mean of its divisors is an integer number (493038).

Almost surely, 2^5721591 is an apocalyptic number.

5721591 is a deficient number, since it is larger than the sum of its proper divisors (2167017).

5721591 is a wasteful number, since it uses less digits than its factorization.

5721591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482.

The product of its digits is 3150, while the sum is 30.

The square root of 5721591 is about 2391.9847407540. The cubic root of 5721591 is about 178.8568604848.

The spelling of 5721591 in words is "five million, seven hundred twenty-one thousand, five hundred ninety-one".