2521583 has 4 divisors (see below), whose sum is σ = 2532288. Its totient is φ = 2510880.

The previous prime is 2521537. The next prime is 2521591. The reversal of 2521583 is 3851252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2521583 - 2⁸ = 2521327 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2526583) 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, 4991 + ... + 5472.

It is an arithmetic number, because the mean of its divisors is an integer number (633072).

2^2521583 is an apocalyptic number.

2521583 is a deficient number, since it is larger than the sum of its proper divisors (10705).

2521583 is a wasteful number, since it uses less digits than its factorization.

2521583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10704.

The product of its digits is 2400, while the sum is 26.

The square root of 2521583 is about 1587.9493064956. The cubic root of 2521583 is about 136.1103307404.

The spelling of 2521583 in words is "two million, five hundred twenty-one thousand, five hundred eighty-three".