2545000705 has 16 divisors (see below), whose sum is σ = 3402337680. Its totient is φ = 1814577408.

The previous prime is 2545000631. The next prime is 2545000723. The reversal of 2545000705 is 5070005452.

It is a Cunningham number, because it is equal to 50448²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 326308096 + 2218692609 = 18064^2 + 47103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2545000705 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 673182 + ... + 676951.

It is an arithmetic number, because the mean of its divisors is an integer number (212646105).

Almost surely, 2^2545000705 is an apocalyptic number.

It is an amenable number.

2545000705 is a deficient number, since it is larger than the sum of its proper divisors (857336975).

2545000705 is a wasteful number, since it uses less digits than its factorization.

2545000705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350180.

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 2545000705 is about 50448.0000099112. Note that the first 5 decimals coincide. The cubic root of 2545000705 is about 1365.3038105078.

The spelling of 2545000705 in words is "two billion, five hundred forty-five million, seven hundred five", and thus it is an aban number.