265620241 has 4 divisors (see below), whose sum is σ = 268358692. Its totient is φ = 262881792.

The previous prime is 265620217. The next prime is 265620253. The reversal of 265620241 is 142026562.

265620241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 157377025 + 108243216 = 12545^2 + 10404^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265620241 is a prime.

It is a super-2 number, since 2×265620241² = 141108224857796162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265620941) 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, 1369080 + ... + 1369273.

It is an arithmetic number, because the mean of its divisors is an integer number (67089673).

Almost surely, 2^265620241 is an apocalyptic number.

It is an amenable number.

265620241 is a deficient number, since it is larger than the sum of its proper divisors (2738451).

265620241 is an equidigital number, since it uses as much as digits as its factorization.

265620241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738450.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 265620241 is about 16297.8600128974. The cubic root of 265620241 is about 642.8165586678.

The spelling of 265620241 in words is "two hundred sixty-five million, six hundred twenty thousand, two hundred forty-one".