2563265 has 8 divisors (see below), whose sum is σ = 3084648. Its totient is φ = 2044800.

The previous prime is 2563261. The next prime is 2563291. The reversal of 2563265 is 5623652.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 142129 + 2421136 = 377^2 + 1556^2 .

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

It is not a de Polignac number, because 2563265 - 2² = 2563261 is a prime.

It is a d-powerful number, because it can be written as 2² + 5⁴ + 6⁵ + 3¹¹ + 2²¹ + 6⁷ + 5⁴ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2563261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2579 + ... + 3431.

It is an arithmetic number, because the mean of its divisors is an integer number (385581).

2^2563265 is an apocalyptic number.

It is an amenable number.

2563265 is a deficient number, since it is larger than the sum of its proper divisors (521383).

2563265 is an equidigital number, since it uses as much as digits as its factorization.

2563265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459.

The product of its digits is 10800, while the sum is 29.

The square root of 2563265 is about 1601.0199873830. The cubic root of 2563265 is about 136.8562080218.

It can be divided in two parts, 2563 and 265, that multiplied together give a triangular number (679195 = T₁₁₆₅).

The spelling of 2563265 in words is "two million, five hundred sixty-three thousand, two hundred sixty-five".