2170522125 has 48 divisors (see below), whose sum is σ = 3922354800. Its totient is φ = 1154764800.

The previous prime is 2170522117. The next prime is 2170522201. The reversal of 2170522125 is 5212250712.

2170522125 is a `hidden beast` number, since 2 + 17 + 0 + 522 + 125 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 557857161 + 1612664964 = 23619^2 + 40158^2 .

It is not a de Polignac number, because 2170522125 - 2³ = 2170522117 is a prime.

It is a super-2 number, since 2×2170522125² = 9422332590229031250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 502977 + ... + 507273.

It is an arithmetic number, because the mean of its divisors is an integer number (81715725).

Almost surely, 2^2170522125 is an apocalyptic number.

2170522125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2170522125 is a deficient number, since it is larger than the sum of its proper divisors (1751832675).

2170522125 is a wasteful number, since it uses less digits than its factorization.

2170522125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4767 (or 4754 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 2170522125 is about 46588.8626712436. The cubic root of 2170522125 is about 1294.7564177653.

Adding to 2170522125 its reverse (5212250712), we get a palindrome (7382772837).

The spelling of 2170522125 in words is "two billion, one hundred seventy million, five hundred twenty-two thousand, one hundred twenty-five".