25791723 has 16 divisors (see below), whose sum is σ = 38317600. Its totient is φ = 17146080.

The previous prime is 25791719. The next prime is 25791743. The reversal of 25791723 is 32719752.

It is not a de Polignac number, because 25791723 - 2² = 25791719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25791713) 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 15 ways as a sum of consecutive naturals, for example, 10233 + ... + 12501.

It is an arithmetic number, because the mean of its divisors is an integer number (2394850).

Almost surely, 2^25791723 is an apocalyptic number.

25791723 is a deficient number, since it is larger than the sum of its proper divisors (12525877).

25791723 is a wasteful number, since it uses less digits than its factorization.

25791723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2699 (or 2693 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 25791723 is about 5078.5552079307. Note that the first 3 decimals coincide. The cubic root of 25791723 is about 295.4564340937.

The spelling of 25791723 in words is "twenty-five million, seven hundred ninety-one thousand, seven hundred twenty-three".