25265261 has 8 divisors (see below), whose sum is σ = 28905024. Its totient is φ = 21633120.

The previous prime is 25265257. The next prime is 25265267. The reversal of 25265261 is 16256252.

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

It is a cyclic number.

It is not a de Polignac number, because 25265261 - 2² = 25265257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25265267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11681 + ... + 13673.

It is an arithmetic number, because the mean of its divisors is an integer number (3613128).

Almost surely, 2^25265261 is an apocalyptic number.

It is an amenable number.

25265261 is a deficient number, since it is larger than the sum of its proper divisors (3639763).

25265261 is a wasteful number, since it uses less digits than its factorization.

25265261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3811.

The product of its digits is 7200, while the sum is 29.

The square root of 25265261 is about 5026.4561074379. The cubic root of 25265261 is about 293.4323080551.

Subtracting from 25265261 its reverse (16256252), we obtain a palindrome (9009009).

The spelling of 25265261 in words is "twenty-five million, two hundred sixty-five thousand, two hundred sixty-one".