25723345 has 4 divisors (see below), whose sum is σ = 30868020. Its totient is φ = 20578672.

The previous prime is 25723309. The next prime is 25723367. The reversal of 25723345 is 54332752.

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 2903616 + 22819729 = 1704^2 + 4777^2 .

It is a cyclic number.

It is not a de Polignac number, because 25723345 - 2⁹ = 25722833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2572330 + ... + 2572339.

It is an arithmetic number, because the mean of its divisors is an integer number (7717005).

Almost surely, 2^25723345 is an apocalyptic number.

It is an amenable number.

25723345 is a deficient number, since it is larger than the sum of its proper divisors (5144675).

25723345 is an equidigital number, since it uses as much as digits as its factorization.

25723345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5144674.

The product of its digits is 25200, while the sum is 31.

The square root of 25723345 is about 5071.8187073278. The cubic root of 25723345 is about 295.1951021935.

The spelling of 25723345 in words is "twenty-five million, seven hundred twenty-three thousand, three hundred forty-five".