2425566613 has 4 divisors (see below), whose sum is σ = 2568247020. Its totient is φ = 2282886208.

The previous prime is 2425566589. The next prime is 2425566643. The reversal of 2425566613 is 3166655242.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3166655242 = 2 ⋅1583327621.

It can be written as a sum of positive squares in 2 ways, for example, as 1372109764 + 1053456849 = 37042^2 + 32457^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2425566613 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 (2425566643) 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, 71340178 + ... + 71340211.

It is an arithmetic number, because the mean of its divisors is an integer number (642061755).

Almost surely, 2^2425566613 is an apocalyptic number.

It is an amenable number.

2425566613 is a deficient number, since it is larger than the sum of its proper divisors (142680407).

2425566613 is a wasteful number, since it uses less digits than its factorization.

2425566613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142680406.

The product of its digits is 259200, while the sum is 40.

The square root of 2425566613 is about 49250.0417563275. The cubic root of 2425566613 is about 1343.6033212372.

The spelling of 2425566613 in words is "two billion, four hundred twenty-five million, five hundred sixty-six thousand, six hundred thirteen".