25617255 has 16 divisors (see below), whose sum is σ = 41661024. Its totient is φ = 13438080.

The previous prime is 25617211. The next prime is 25617259. The reversal of 25617255 is 55271652.

It is not a de Polignac number, because 25617255 - 2⁷ = 25617127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25617259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13084 + ... + 14913.

It is an arithmetic number, because the mean of its divisors is an integer number (2603814).

Almost surely, 2^25617255 is an apocalyptic number.

25617255 is a deficient number, since it is larger than the sum of its proper divisors (16043769).

25617255 is a wasteful number, since it uses less digits than its factorization.

25617255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28066.

The product of its digits is 21000, while the sum is 33.

The square root of 25617255 is about 5061.3491284439. The cubic root of 25617255 is about 294.7887216483.

The spelling of 25617255 in words is "twenty-five million, six hundred seventeen thousand, two hundred fifty-five".