25606255 has 4 divisors (see below), whose sum is σ = 30727512. Its totient is φ = 20485000.

The previous prime is 25606253. The next prime is 25606289. The reversal of 25606255 is 55260652.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25606255 - 2¹ = 25606253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25606253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2560621 + ... + 2560630.

It is an arithmetic number, because the mean of its divisors is an integer number (7681878).

Almost surely, 2^25606255 is an apocalyptic number.

25606255 is a deficient number, since it is larger than the sum of its proper divisors (5121257).

25606255 is an equidigital number, since it uses as much as digits as its factorization.

25606255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121256.

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 25606255 is about 5060.2623449778. The cubic root of 25606255 is about 294.7465217042.

The spelling of 25606255 in words is "twenty-five million, six hundred six thousand, two hundred fifty-five".