25550265 has 24 divisors (see below), whose sum is σ = 44271360. Its totient is φ = 12577344.

The previous prime is 25550243. The next prime is 25550267. The reversal of 25550265 is 56205552.

It is not a de Polignac number, because 25550265 - 2⁹ = 25549753 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25550267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2505 + ... + 7574.

It is an arithmetic number, because the mean of its divisors is an integer number (1844640).

Almost surely, 2^25550265 is an apocalyptic number.

It is an amenable number.

25550265 is a deficient number, since it is larger than the sum of its proper divisors (18721095).

25550265 is a wasteful number, since it uses less digits than its factorization.

25550265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10113 (or 10100 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 25550265 is about 5054.7269955953. The cubic root of 25550265 is about 294.5315364642.

The spelling of 25550265 in words is "twenty-five million, five hundred fifty thousand, two hundred sixty-five".