2640025593 has 6 divisors (see below), whose sum is σ = 3813370314. Its totient is φ = 1760017056.

The previous prime is 2640025573. The next prime is 2640025603. The reversal of 2640025593 is 3955200462.

2640025593 is a `hidden beast` number, since 2 + 6 + 40 + 0 + 25 + 593 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2630458944 + 9566649 = 51288^2 + 3093^2 .

It is not a de Polignac number, because 2640025593 - 2⁶ = 2640025529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2640025513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146668080 + ... + 146668097.

It is an arithmetic number, because the mean of its divisors is an integer number (635561719).

Almost surely, 2^2640025593 is an apocalyptic number.

It is an amenable number.

2640025593 is a deficient number, since it is larger than the sum of its proper divisors (1173344721).

2640025593 is a wasteful number, since it uses less digits than its factorization.

2640025593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293336183 (or 293336180 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 2640025593 is about 51381.1793656004. The cubic root of 2640025593 is about 1382.0891121106.

The spelling of 2640025593 in words is "two billion, six hundred forty million, twenty-five thousand, five hundred ninety-three".