25025305305005 has 8 divisors (see below), whose sum is σ = 30076354679832. Its totient is φ = 19989585368128.

The previous prime is 25025305304963. The next prime is 25025305305053. The reversal of 25025305305005 is 50050350352052.

It can be written as a sum of positive squares in 4 ways, for example, as 2643833724169 + 22381471580836 = 1625987^2 + 4730906^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25025305305005 - 2²⁸ = 25025036869549 is a prime.

It is a super-2 number, since 2×25025305305005² (a number of 28 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 3832355894 + ... + 3832362423.

It is an arithmetic number, because the mean of its divisors is an integer number (3759544334979).

Almost surely, 2^{25025305305005} is an apocalyptic number.

It is an amenable number.

25025305305005 is a deficient number, since it is larger than the sum of its proper divisors (5051049374827).

25025305305005 is an equidigital number, since it uses as much as digits as its factorization.

25025305305005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7664718975.

The product of its (nonzero) digits is 112500, while the sum is 35.

Adding to 25025305305005 its reverse (50050350352052), we get a palindrome (75075655657057).

The spelling of 25025305305005 in words is "twenty-five trillion, twenty-five billion, three hundred five million, three hundred five thousand, five".