2523559 has 4 divisors (see below), whose sum is σ = 2534904. Its totient is φ = 2512216.

The previous prime is 2523557. The next prime is 2523569. The reversal of 2523559 is 9553252.

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 2523559 - 2¹ = 2523557 is a prime.

It is a d-powerful number, because it can be written as 2¹⁴ + 5⁷ + 2¹⁶ + 3⁹ + 5⁸ + 5⁹ + 9² .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2523559.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2523557) 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, 5332 + ... + 5785.

It is an arithmetic number, because the mean of its divisors is an integer number (633726).

2^2523559 is an apocalyptic number.

2523559 is a deficient number, since it is larger than the sum of its proper divisors (11345).

2523559 is a wasteful number, since it uses less digits than its factorization.

2523559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11344.

The product of its digits is 13500, while the sum is 31.

The square root of 2523559 is about 1588.5713707605. The cubic root of 2523559 is about 136.1458750513.

The spelling of 2523559 in words is "two million, five hundred twenty-three thousand, five hundred fifty-nine".