2625996647 has 4 divisors (see below), whose sum is σ = 2780467056. Its totient is φ = 2471526240.

The previous prime is 2625996623. The next prime is 2625996649. The reversal of 2625996647 is 7466995262.

It is a happy number.

2625996647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2625996647 - 2¹⁴ = 2625980263 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2625996592 and 2625996601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2625996649) 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, 77235179 + ... + 77235212.

It is an arithmetic number, because the mean of its divisors is an integer number (695116764).

Almost surely, 2^2625996647 is an apocalyptic number.

2625996647 is a deficient number, since it is larger than the sum of its proper divisors (154470409).

2625996647 is a wasteful number, since it uses less digits than its factorization.

2625996647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154470408.

The product of its digits is 9797760, while the sum is 56.

The square root of 2625996647 is about 51244.4791855669. The cubic root of 2625996647 is about 1379.6366485450.

The spelling of 2625996647 in words is "two billion, six hundred twenty-five million, nine hundred ninety-six thousand, six hundred forty-seven".