25432135105325 has 24 divisors (see below), whose sum is σ = 34262227863528. Its totient is φ = 18614453114880.

The previous prime is 25432135105309. The next prime is 25432135105387. The reversal of 25432135105325 is 52350153123452.

It can be written as a sum of positive squares in 12 ways, for example, as 20778545605801 + 4653589499524 = 4558349^2 + 2157218^2 .

It is not a de Polignac number, because 25432135105325 - 2⁴ = 25432135105309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 346214264 + ... + 346287713.

It is an arithmetic number, because the mean of its divisors is an integer number (1427592827647).

Almost surely, 2^{25432135105325} is an apocalyptic number.

25432135105325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25432135105325 is a deficient number, since it is larger than the sum of its proper divisors (8830092758203).

25432135105325 is a wasteful number, since it uses less digits than its factorization.

25432135105325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692502113 (or 692502108 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 41.

Adding to 25432135105325 its reverse (52350153123452), we get a palindrome (77782288228777).

The spelling of 25432135105325 in words is "twenty-five trillion, four hundred thirty-two billion, one hundred thirty-five million, one hundred five thousand, three hundred twenty-five".