25916673 has 4 divisors (see below), whose sum is σ = 34555568. Its totient is φ = 17277780.

The previous prime is 25916669. The next prime is 25916677. The reversal of 25916673 is 37661952.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (25916669) and next prime (25916677).

It is not a de Polignac number, because 25916673 - 2² = 25916669 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25916677) 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, 4319443 + ... + 4319448.

It is an arithmetic number, because the mean of its divisors is an integer number (8638892).

Almost surely, 2^25916673 is an apocalyptic number.

It is an amenable number.

25916673 is a deficient number, since it is larger than the sum of its proper divisors (8638895).

25916673 is an equidigital number, since it uses as much as digits as its factorization.

25916673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8638894.

The product of its digits is 68040, while the sum is 39.

The square root of 25916673 is about 5090.8420717991. The cubic root of 25916673 is about 295.9327862057.

The spelling of 25916673 in words is "twenty-five million, nine hundred sixteen thousand, six hundred seventy-three".