2125260640 has 24 divisors (see below), whose sum is σ = 5020928640. Its totient is φ = 850104192.

The previous prime is 2125260623. The next prime is 2125260659. The reversal of 2125260640 is 460625212.

It is a junction number, because it is equal to n+sod(n) for n = 2125260599 and 2125260608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6641280 + ... + 6641599.

It is an arithmetic number, because the mean of its divisors is an integer number (209205360).

Almost surely, 2^2125260640 is an apocalyptic number.

2125260640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2125260640 is an abundant number, since it is smaller than the sum of its proper divisors (2895668000).

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

2125260640 is a wasteful number, since it uses less digits than its factorization.

2125260640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13282894 (or 13282886 counting only the distinct ones).

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

The square root of 2125260640 is about 46100.5492375091. The cubic root of 2125260640 is about 1285.6933562260.

Adding to 2125260640 its reverse (460625212), we get a palindrome (2585885852).

The spelling of 2125260640 in words is "two billion, one hundred twenty-five million, two hundred sixty thousand, six hundred forty".