25955565 has 8 divisors (see below), whose sum is σ = 41528928. Its totient is φ = 13842960.

The previous prime is 25955543. The next prime is 25955593. The reversal of 25955565 is 56555952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25955565 - 2⁵ = 25955533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 865171 + ... + 865200.

It is an arithmetic number, because the mean of its divisors is an integer number (5191116).

Almost surely, 2^25955565 is an apocalyptic number.

It is an amenable number.

25955565 is a deficient number, since it is larger than the sum of its proper divisors (15573363).

25955565 is a wasteful number, since it uses less digits than its factorization.

25955565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730379.

The product of its digits is 337500, while the sum is 42.

The square root of 25955565 is about 5094.6604401079. The cubic root of 25955565 is about 296.0807432820.

The spelling of 25955565 in words is "twenty-five million, nine hundred fifty-five thousand, five hundred sixty-five".