2656173125 has 40 divisors (see below), whose sum is σ = 3400611456. Its totient is φ = 2073456000.

The previous prime is 2656173083. The next prime is 2656173137. The reversal of 2656173125 is 5213716562.

It is a happy number.

It is not a de Polignac number, because 2656173125 - 2¹⁶ = 2656107589 is a prime.

It is a Duffinian number.

It is a congruent number.

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 39 ways as a sum of consecutive naturals, for example, 5736644 + ... + 5737106.

Almost surely, 2^2656173125 is an apocalyptic number.

2656173125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2656173125 is a deficient number, since it is larger than the sum of its proper divisors (744438331).

2656173125 is an equidigital number, since it uses as much as digits as its factorization.

2656173125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687 (or 672 counting only the distinct ones).

The product of its digits is 75600, while the sum is 38.

The square root of 2656173125 is about 51538.0745177776. The cubic root of 2656173125 is about 1384.9012037075.

Adding to 2656173125 its reverse (5213716562), we get a palindrome (7869889687).

The spelling of 2656173125 in words is "two billion, six hundred fifty-six million, one hundred seventy-three thousand, one hundred twenty-five".