2523569 has 2 divisors, whose sum is σ = 2523570. Its totient is φ = 2523568.

The previous prime is 2523557. The next prime is 2523581. The reversal of 2523569 is 9653252.

It is a balanced prime because it is at equal distance from previous prime (2523557) and next prime (2523581).

It can be written as a sum of positive squares in only one way, i.e., 1690000 + 833569 = 1300^2 + 913^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2523569 is a prime.

It is a super-2 number, since 2×2523569² = 12736800995522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2523529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1261784 + 1261785.

It is an arithmetic number, because the mean of its divisors is an integer number (1261785).

2^2523569 is an apocalyptic number.

It is an amenable number.

2523569 is a deficient number, since it is larger than the sum of its proper divisors (1).

2523569 is an equidigital number, since it uses as much as digits as its factorization.

2523569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 32.

The square root of 2523569 is about 1588.5745182395. The cubic root of 2523569 is about 136.1460548842.

The spelling of 2523569 in words is "two million, five hundred twenty-three thousand, five hundred sixty-nine".