2725215606545 has 16 divisors (see below), whose sum is σ = 3466907107920. Its totient is φ = 2049390618624.

The previous prime is 2725215606481. The next prime is 2725215606551. The reversal of 2725215606545 is 5456065125272.

It can be written as a sum of positive squares in 8 ways, for example, as 332155116241 + 2393060490304 = 576329^2 + 1546952^2 .

It is a cyclic number.

It is not a de Polignac number, because 2725215606545 - 2⁶ = 2725215606481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2725215606493 and 2725215606502.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19746662 + ... + 19884191.

It is an arithmetic number, because the mean of its divisors is an integer number (216681694245).

Almost surely, 2^{2725215606545} is an apocalyptic number.

It is an amenable number.

2725215606545 is a deficient number, since it is larger than the sum of its proper divisors (741691501375).

2725215606545 is a wasteful number, since it uses less digits than its factorization.

2725215606545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39631684.

The product of its (nonzero) digits is 5040000, while the sum is 50.

The spelling of 2725215606545 in words is "two trillion, seven hundred twenty-five billion, two hundred fifteen million, six hundred six thousand, five hundred forty-five".