2170725015 has 32 divisors (see below), whose sum is σ = 3663820800. Its totient is φ = 1094428800.

The previous prime is 2170725001. The next prime is 2170725017. The reversal of 2170725015 is 5105270712.

It is not a de Polignac number, because 2170725015 - 2⁴ = 2170724999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2170725017) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 128565 + ... + 144465.

It is an arithmetic number, because the mean of its divisors is an integer number (114494400).

Almost surely, 2^2170725015 is an apocalyptic number.

2170725015 is a deficient number, since it is larger than the sum of its proper divisors (1493095785).

2170725015 is a wasteful number, since it uses less digits than its factorization.

2170725015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16407.

The product of its (nonzero) digits is 4900, while the sum is 30.

The square root of 2170725015 is about 46591.0400720997. The cubic root of 2170725015 is about 1294.7967590487.

Adding to 2170725015 its reverse (5105270712), we get a palindrome (7275995727).

The spelling of 2170725015 in words is "two billion, one hundred seventy million, seven hundred twenty-five thousand, fifteen".