25300530505505 has 4 divisors (see below), whose sum is σ = 30360636606612. Its totient is φ = 20240424404400.

The previous prime is 25300530505493. The next prime is 25300530505517. The reversal of 25300530505505 is 50550503500352.

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

It is an interprime number because it is at equal distance from previous prime (25300530505493) and next prime (25300530505517).

It can be written as a sum of positive squares in 2 ways, for example, as 7168663534096 + 18131866971409 = 2677436^2 + 4258153^2 .

It is not a de Polignac number, because 25300530505505 - 2²² = 25300526311201 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 2530053050546 + ... + 2530053050555.

It is an arithmetic number, because the mean of its divisors is an integer number (7590159151653).

Almost surely, 2^{25300530505505} is an apocalyptic number.

It is an amenable number.

25300530505505 is a deficient number, since it is larger than the sum of its proper divisors (5060106101107).

25300530505505 is an equidigital number, since it uses as much as digits as its factorization.

25300530505505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060106101106.

The product of its (nonzero) digits is 281250, while the sum is 38.

The spelling of 25300530505505 in words is "twenty-five trillion, three hundred billion, five hundred thirty million, five hundred five thousand, five hundred five".