2502640265 has 4 divisors (see below), whose sum is σ = 3003168324. Its totient is φ = 2002112208.

The previous prime is 2502640247. The next prime is 2502640277. The reversal of 2502640265 is 5620462052.

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 1660073536 + 842566729 = 40744^2 + 29027^2 .

It is a cyclic number.

It is not a de Polignac number, because 2502640265 - 2⁶ = 2502640201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250264022 + ... + 250264031.

It is an arithmetic number, because the mean of its divisors is an integer number (750792081).

Almost surely, 2^2502640265 is an apocalyptic number.

It is an amenable number.

2502640265 is a deficient number, since it is larger than the sum of its proper divisors (500528059).

2502640265 is an equidigital number, since it uses as much as digits as its factorization.

2502640265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500528058.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2502640265 is about 50026.3956826794. The cubic root of 2502640265 is about 1357.6864256539.

The spelling of 2502640265 in words is "two billion, five hundred two million, six hundred forty thousand, two hundred sixty-five".