25723172 has 6 divisors (see below), whose sum is σ = 45015558. Its totient is φ = 12861584.

The previous prime is 25723171. The next prime is 25723189. The reversal of 25723172 is 27132752.

It can be written as a sum of positive squares in only one way, i.e., 14258176 + 11464996 = 3776^2 + 3386^2 .

It is not an unprimeable number, because it can be changed into a prime (25723171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3215393 + ... + 3215400.

It is an arithmetic number, because the mean of its divisors is an integer number (7502593).

Almost surely, 2^25723172 is an apocalyptic number.

It is an amenable number.

25723172 is a deficient number, since it is larger than the sum of its proper divisors (19292386).

25723172 is a wasteful number, since it uses less digits than its factorization.

25723172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6430797 (or 6430795 counting only the distinct ones).

The product of its digits is 5880, while the sum is 29.

The square root of 25723172 is about 5071.8016522731. The cubic root of 25723172 is about 295.1944404228.

The spelling of 25723172 in words is "twenty-five million, seven hundred twenty-three thousand, one hundred seventy-two".