25255500253 has 4 divisors (see below), whose sum is σ = 25353770940. Its totient is φ = 25157229568.

The previous prime is 25255500247. The next prime is 25255500299. The reversal of 25255500253 is 35200555252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 24826098969 + 429401284 = 157563^2 + 20722^2 .

It is a cyclic number.

It is not a de Polignac number, because 25255500253 - 2¹³ = 25255492061 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 (25255500223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49134958 + ... + 49135471.

It is an arithmetic number, because the mean of its divisors is an integer number (6338442735).

Almost surely, 2^25255500253 is an apocalyptic number.

It is an amenable number.

25255500253 is a deficient number, since it is larger than the sum of its proper divisors (98270687).

25255500253 is an equidigital number, since it uses as much as digits as its factorization.

25255500253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98270686.

The product of its (nonzero) digits is 75000, while the sum is 34.

The spelling of 25255500253 in words is "twenty-five billion, two hundred fifty-five million, five hundred thousand, two hundred fifty-three".