25752558253 has 4 divisors (see below), whose sum is σ = 25803153180. Its totient is φ = 25701963328.

The previous prime is 25752558241. The next prime is 25752558259. The reversal of 25752558253 is 35285525752.

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 8143799049 + 17608759204 = 90243^2 + 132698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25752558253 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25752558197 and 25752558206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25752558259) 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, 25296700 + ... + 25297717.

It is an arithmetic number, because the mean of its divisors is an integer number (6450788295).

Almost surely, 2^25752558253 is an apocalyptic number.

It is an amenable number.

25752558253 is a deficient number, since it is larger than the sum of its proper divisors (50594927).

25752558253 is an equidigital number, since it uses as much as digits as its factorization.

25752558253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50594926.

The product of its digits is 4200000, while the sum is 49.

The spelling of 25752558253 in words is "twenty-five billion, seven hundred fifty-two million, five hundred fifty-eight thousand, two hundred fifty-three".