2523869 has 2 divisors, whose sum is σ = 2523870. Its totient is φ = 2523868.

The previous prime is 2523863. The next prime is 2523877. The reversal of 2523869 is 9683252.

2523869 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1592644 + 931225 = 1262^2 + 965^2 .

It is a cyclic number.

It is not a de Polignac number, because 2523869 - 2¹⁶ = 2458333 is a prime.

It is a super-2 number, since 2×2523869² = 12739829458322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 2¹⁶ + 5⁶ + 2¹⁶ + 3 + 8⁷ + 6⁷ + 9² .

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2523863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1261934 + 1261935.

It is an arithmetic number, because the mean of its divisors is an integer number (1261935).

2^2523869 is an apocalyptic number.

It is an amenable number.

2523869 is a deficient number, since it is larger than the sum of its proper divisors (1).

2523869 is an equidigital number, since it uses as much as digits as its factorization.

2523869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 35.

The square root of 2523869 is about 1588.6689397102. The cubic root of 2523869 is about 136.1514496509.

The spelling of 2523869 in words is "two million, five hundred twenty-three thousand, eight hundred sixty-nine".