25602605255 has 8 divisors (see below), whose sum is σ = 30726808224. Its totient is φ = 20479629600.

The previous prime is 25602605239. The next prime is 25602605257. The reversal of 25602605255 is 55250620652.

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

It is not a de Polignac number, because 25602605255 - 2⁴ = 25602605239 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 (25602605257) 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, 260291 + ... + 344900.

It is an arithmetic number, because the mean of its divisors is an integer number (3840851028).

Almost surely, 2^25602605255 is an apocalyptic number.

25602605255 is a deficient number, since it is larger than the sum of its proper divisors (5124202969).

25602605255 is an equidigital number, since it uses as much as digits as its factorization.

25602605255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613657.

The product of its (nonzero) digits is 180000, while the sum is 38.

The spelling of 25602605255 in words is "twenty-five billion, six hundred two million, six hundred five thousand, two hundred fifty-five".