2505231705601 has 4 divisors (see below), whose sum is σ = 2505455458132. Its totient is φ = 2505007953072.

The previous prime is 2505231705593. The next prime is 2505231705617. The reversal of 2505231705601 is 1065071325052.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1409441465601 + 1095790240000 = 1187199^2 + 1046800^2 .

It is a cyclic number.

It is not a de Polignac number, because 2505231705601 - 2³ = 2505231705593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2505231765601) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 111859470 + ... + 111881863.

It is an arithmetic number, because the mean of its divisors is an integer number (626363864533).

Almost surely, 2^{2505231705601} is an apocalyptic number.

It is an amenable number.

2505231705601 is a deficient number, since it is larger than the sum of its proper divisors (223752531).

2505231705601 is a wasteful number, since it uses less digits than its factorization.

2505231705601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223752530.

The product of its (nonzero) digits is 63000, while the sum is 37.

The spelling of 2505231705601 in words is "two trillion, five hundred five billion, two hundred thirty-one million, seven hundred five thousand, six hundred one".