2505829 has 2 divisors, whose sum is σ = 2505830. Its totient is φ = 2505828.

The previous prime is 2505809. The next prime is 2505847. The reversal of 2505829 is 9285052.

It is a happy number.

2505829 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1965604 + 540225 = 1402^2 + 735^2 .

It is a cyclic number.

It is not a de Polignac number, because 2505829 - 2¹³ = 2497637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2505829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2505809) 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, 1252914 + 1252915.

It is an arithmetic number, because the mean of its divisors is an integer number (1252915).

2^2505829 is an apocalyptic number.

It is an amenable number.

2505829 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505829 is an equidigital number, since it uses as much as digits as its factorization.

2505829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 2505829 is about 1582.9810485284. The cubic root of 2505829 is about 135.8262812235.

The spelling of 2505829 in words is "two million, five hundred five thousand, eight hundred twenty-nine".