25255655253 has 10 divisors (see below), whose sum is σ = 37727583894. Its totient is φ = 16837103448.

The previous prime is 25255655251. The next prime is 25255655261. The reversal of 25255655253 is 35255655252.

25255655253 is a `hidden beast` number, since 2 + 525 + 56 + 55 + 25 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24911255889 + 344399364 = 157833^2 + 18558^2 .

It is not a de Polignac number, because 25255655253 - 2¹ = 25255655251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25255655199 and 25255655208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25255655251) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 155899026 + ... + 155899187.

Almost surely, 2^25255655253 is an apocalyptic number.

It is an amenable number.

25255655253 is a deficient number, since it is larger than the sum of its proper divisors (12471928641).

25255655253 is an equidigital number, since it uses as much as digits as its factorization.

25255655253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311798225 (or 311798216 counting only the distinct ones).

The product of its digits is 2250000, while the sum is 45.

Subtracting 25255655253 from its reverse (35255655252), we obtain a palindrome (9999999999).

The spelling of 25255655253 in words is "twenty-five billion, two hundred fifty-five million, six hundred fifty-five thousand, two hundred fifty-three".