25930829 has 4 divisors (see below), whose sum is σ = 25949820. Its totient is φ = 25911840.

The previous prime is 25930811. The next prime is 25930873. The reversal of 25930829 is 92803952.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3822025 + 22108804 = 1955^2 + 4702^2 .

It is a cyclic number.

It is not a de Polignac number, because 25930829 - 2¹⁶ = 25865293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25930792 and 25930801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25930889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7274 + ... + 10235.

It is an arithmetic number, because the mean of its divisors is an integer number (6487455).

Almost surely, 2^25930829 is an apocalyptic number.

It is an amenable number.

25930829 is a deficient number, since it is larger than the sum of its proper divisors (18991).

25930829 is a wasteful number, since it uses less digits than its factorization.

25930829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18990.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 25930829 is about 5092.2322217275. The cubic root of 25930829 is about 295.9866570866.

The spelling of 25930829 in words is "twenty-five million, nine hundred thirty thousand, eight hundred twenty-nine".