2015025680 has 20 divisors (see below), whose sum is σ = 4684934892. Its totient is φ = 806010240.

The previous prime is 2015025673. The next prime is 2015025703. The reversal of 2015025680 is 865205102.

It can be written as a sum of positive squares in 2 ways, for example, as 363741184 + 1651284496 = 19072^2 + 40636^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12593831 + ... + 12593990.

Almost surely, 2^2015025680 is an apocalyptic number.

2015025680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2015025680 is an abundant number, since it is smaller than the sum of its proper divisors (2669909212).

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

2015025680 is a wasteful number, since it uses less digits than its factorization.

2015025680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25187834 (or 25187828 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

The square root of 2015025680 is about 44889.0374144958. The cubic root of 2015025680 is about 1263.0683763047.

The spelling of 2015025680 in words is "two billion, fifteen million, twenty-five thousand, six hundred eighty".