2566275213 has 4 divisors (see below), whose sum is σ = 3421700288. Its totient is φ = 1710850140.

The previous prime is 2566275199. The next prime is 2566275227. The reversal of 2566275213 is 3125726652.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2566275199) and next prime (2566275227).

It is not a de Polignac number, because 2566275213 - 2²¹ = 2564178061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2566275113) 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, 427712533 + ... + 427712538.

It is an arithmetic number, because the mean of its divisors is an integer number (855425072).

Almost surely, 2^2566275213 is an apocalyptic number.

It is an amenable number.

2566275213 is a deficient number, since it is larger than the sum of its proper divisors (855425075).

2566275213 is an equidigital number, since it uses as much as digits as its factorization.

2566275213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855425074.

The product of its digits is 151200, while the sum is 39.

The square root of 2566275213 is about 50658.4170005341. The cubic root of 2566275213 is about 1369.0976018736.

The spelling of 2566275213 in words is "two billion, five hundred sixty-six million, two hundred seventy-five thousand, two hundred thirteen".