2625012640 has 48 divisors (see below), whose sum is σ = 6527999520. Its totient is φ = 994740480.

The previous prime is 2625012581. The next prime is 2625012661. The reversal of 2625012640 is 462105262.

It is a junction number, because it is equal to n+sod(n) for n = 2625012599 and 2625012608.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 428706 + ... + 434785.

It is an arithmetic number, because the mean of its divisors is an integer number (135999990).

Almost surely, 2^2625012640 is an apocalyptic number.

2625012640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2625012640 is an abundant number, since it is smaller than the sum of its proper divisors (3902986880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2625012640 is a wasteful number, since it uses less digits than its factorization.

2625012640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863525 (or 863517 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 2625012640 is about 51234.8771834187. The cubic root of 2625012640 is about 1379.4643023331.

The spelling of 2625012640 in words is "two billion, six hundred twenty-five million, twelve thousand, six hundred forty".