25673893 has 30 divisors (see below), whose sum is σ = 32676466. Its totient is φ = 20151936.

The previous prime is 25673887. The next prime is 25673917. The reversal of 25673893 is 39837652.

It can be written as a sum of positive squares in 3 ways, for example, as 16144324 + 9529569 = 4018^2 + 3087^2 .

It is not a de Polignac number, because 25673893 - 2⁵ = 25673861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25673393) 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 29 ways as a sum of consecutive naturals, for example, 693871 + ... + 693907.

Almost surely, 2^25673893 is an apocalyptic number.

It is an amenable number.

25673893 is a deficient number, since it is larger than the sum of its proper divisors (7002573).

25673893 is an frugal number, since it uses more digits than its factorization.

25673893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 61 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The square root of 25673893 is about 5066.9411877384. The cubic root of 25673893 is about 295.0058143065.

The spelling of 25673893 in words is "twenty-five million, six hundred seventy-three thousand, eight hundred ninety-three".