265056247705 has 4 divisors (see below), whose sum is σ = 318067497252. Its totient is φ = 212044998160.

The previous prime is 265056247679. The next prime is 265056247717. The reversal of 265056247705 is 507742650562.

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 165627022729 + 99429224976 = 406973^2 + 315324^2 .

It is not a de Polignac number, because 265056247705 - 2¹⁵ = 265056214937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26505624766 + ... + 26505624775.

It is an arithmetic number, because the mean of its divisors is an integer number (79516874313).

Almost surely, 2^265056247705 is an apocalyptic number.

It is an amenable number.

265056247705 is a deficient number, since it is larger than the sum of its proper divisors (53011249547).

265056247705 is an equidigital number, since it uses as much as digits as its factorization.

265056247705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53011249546.

The product of its (nonzero) digits is 3528000, while the sum is 49.

The spelling of 265056247705 in words is "two hundred sixty-five billion, fifty-six million, two hundred forty-seven thousand, seven hundred five".