2523539 has 2 divisors, whose sum is σ = 2523540. Its totient is φ = 2523538.

The previous prime is 2523533. The next prime is 2523557. The reversal of 2523539 is 9353252.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2523539 - 2¹⁶ = 2458003 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2523533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1261769 + 1261770.

It is an arithmetic number, because the mean of its divisors is an integer number (1261770).

2^2523539 is an apocalyptic number.

2523539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2523539 is an equidigital number, since it uses as much as digits as its factorization.

2523539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 29.

The square root of 2523539 is about 1588.5650757838. The cubic root of 2523539 is about 136.1455153840.

The spelling of 2523539 in words is "two million, five hundred twenty-three thousand, five hundred thirty-nine".