2642865825 has 12 divisors (see below), whose sum is σ = 4369538288. Its totient is φ = 1409528400.

The previous prime is 2642865817. The next prime is 2642865833. The reversal of 2642865825 is 5285682462.

It is an interprime number because it is at equal distance from previous prime (2642865817) and next prime (2642865833).

It is not a de Polignac number, because 2642865825 - 2³ = 2642865817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17619031 + ... + 17619180.

Almost surely, 2^2642865825 is an apocalyptic number.

2642865825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2642865825 is a deficient number, since it is larger than the sum of its proper divisors (1726672463).

2642865825 is a wasteful number, since it uses less digits than its factorization.

2642865825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35238224 (or 35238219 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 48.

The square root of 2642865825 is about 51408.8107720846. The cubic root of 2642865825 is about 1382.5845677684.

The spelling of 2642865825 in words is "two billion, six hundred forty-two million, eight hundred sixty-five thousand, eight hundred twenty-five".