25613265 has 8 divisors (see below), whose sum is σ = 40981248. Its totient is φ = 13660400.

The previous prime is 25613227. The next prime is 25613299. The reversal of 25613265 is 56231652.

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

It is not a de Polignac number, because 25613265 - 2⁶ = 25613201 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853761 + ... + 853790.

It is an arithmetic number, because the mean of its divisors is an integer number (5122656).

Almost surely, 2^25613265 is an apocalyptic number.

It is an amenable number.

25613265 is a deficient number, since it is larger than the sum of its proper divisors (15367983).

25613265 is a wasteful number, since it uses less digits than its factorization.

25613265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707559.

The product of its digits is 10800, while the sum is 30.

The square root of 25613265 is about 5060.9549494142. The cubic root of 25613265 is about 294.7734159741.

It can be divided in two parts, 25613 and 265, that added together give a triangular number (25878 = T₂₂₇).

The spelling of 25613265 in words is "twenty-five million, six hundred thirteen thousand, two hundred sixty-five".