2656725175257 has 8 divisors (see below), whose sum is σ = 3728737088160. Its totient is φ = 1677931689600.

The previous prime is 2656725175217. The next prime is 2656725175259. The reversal of 2656725175257 is 7525715276562.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2656725175257 - 2¹² = 2656725171161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2656725175257.

It is not an unprimeable number, because it can be changed into a prime (2656725175259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23304606744 + ... + 23304606857.

It is an arithmetic number, because the mean of its divisors is an integer number (466092136020).

Almost surely, 2^{2656725175257} is an apocalyptic number.

It is an amenable number.

2656725175257 is a deficient number, since it is larger than the sum of its proper divisors (1072011912903).

2656725175257 is a wasteful number, since it uses less digits than its factorization.

2656725175257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46609213623.

The product of its digits is 61740000, while the sum is 60.

The spelling of 2656725175257 in words is "two trillion, six hundred fifty-six billion, seven hundred twenty-five million, one hundred seventy-five thousand, two hundred fifty-seven".