25345254353 has 4 divisors (see below), whose sum is σ = 25760750388. Its totient is φ = 24929758320.

The previous prime is 25345254343. The next prime is 25345254367. The reversal of 25345254353 is 35345254352.

It is a happy number.

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 2431771969 + 22913482384 = 49313^2 + 151372^2 .

It is a cyclic number.

It is not a de Polignac number, because 25345254353 - 2⁸ = 25345254097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25345254353.

It is not an unprimeable number, because it can be changed into a prime (25345254343) 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, 207747926 + ... + 207748047.

It is an arithmetic number, because the mean of its divisors is an integer number (6440187597).

Almost surely, 2^25345254353 is an apocalyptic number.

It is an amenable number.

25345254353 is a deficient number, since it is larger than the sum of its proper divisors (415496035).

25345254353 is an equidigital number, since it uses as much as digits as its factorization.

25345254353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415496034.

The product of its digits is 1080000, while the sum is 41.

Subtracting 25345254353 from its reverse (35345254352), we obtain a palindrome (9999999999).

The spelling of 25345254353 in words is "twenty-five billion, three hundred forty-five million, two hundred fifty-four thousand, three hundred fifty-three".