25255382258 has 18 divisors (see below), whose sum is σ = 38289536847. Its totient is φ = 12493630140.

The previous prime is 25255382213. The next prime is 25255382329. The reversal of 25255382258 is 85228355252.

It can be written as a sum of positive squares in only one way, i.e., 12627691129 + 12627691129 = 112373^2 + 112373^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=112373.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23148293 + ... + 23149383.

Almost surely, 2^25255382258 is an apocalyptic number.

25255382258 is a deficient number, since it is larger than the sum of its proper divisors (13034154589).

25255382258 is an frugal number, since it uses more digits than its factorization.

25255382258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390 (or 1196 counting only the distinct ones).

The product of its digits is 1920000, while the sum is 47.

The spelling of 25255382258 in words is "twenty-five billion, two hundred fifty-five million, three hundred eighty-two thousand, two hundred fifty-eight".