25655345 has 4 divisors (see below), whose sum is σ = 30786420. Its totient is φ = 20524272.

The previous prime is 25655341. The next prime is 25655417. The reversal of 25655345 is 54355652.

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 14318656 + 11336689 = 3784^2 + 3367^2 .

It is a cyclic number.

It is not a de Polignac number, because 25655345 - 2² = 25655341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25655341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2565530 + ... + 2565539.

It is an arithmetic number, because the mean of its divisors is an integer number (7696605).

Almost surely, 2^25655345 is an apocalyptic number.

It is an amenable number.

25655345 is a deficient number, since it is larger than the sum of its proper divisors (5131075).

25655345 is an equidigital number, since it uses as much as digits as its factorization.

25655345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5131074.

The product of its digits is 90000, while the sum is 35.

The square root of 25655345 is about 5065.1105614784. The cubic root of 25655345 is about 294.9347552732.

The spelling of 25655345 in words is "twenty-five million, six hundred fifty-five thousand, three hundred forty-five".