25725893 has 4 divisors (see below), whose sum is σ = 25898700. Its totient is φ = 25553088.

The previous prime is 25725881. The next prime is 25725907. The reversal of 25725893 is 39852752.

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 10099684 + 15626209 = 3178^2 + 3953^2 .

It is a cyclic number.

It is not a de Polignac number, because 25725893 - 2¹⁶ = 25660357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25725893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25725803) 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 in 3 ways as a sum of consecutive naturals, for example, 86180 + ... + 86477.

It is an arithmetic number, because the mean of its divisors is an integer number (6474675).

Almost surely, 2^25725893 is an apocalyptic number.

It is an amenable number.

25725893 is a deficient number, since it is larger than the sum of its proper divisors (172807).

25725893 is a wasteful number, since it uses less digits than its factorization.

25725893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172806.

The product of its digits is 151200, while the sum is 41.

The square root of 25725893 is about 5072.0698930516. The cubic root of 25725893 is about 295.2048486228.

The spelling of 25725893 in words is "twenty-five million, seven hundred twenty-five thousand, eight hundred ninety-three".