2601811325 has 24 divisors (see below), whose sum is σ = 3508371432. Its totient is φ = 1906053120.

The previous prime is 2601811319. The next prime is 2601811339. The reversal of 2601811325 is 5231181062.

It can be written as a sum of positive squares in 12 ways, for example, as 647906116 + 1953905209 = 25454^2 + 44203^2 .

It is not a de Polignac number, because 2601811325 - 2²² = 2597617021 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 (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67004 + ... + 98453.

It is an arithmetic number, because the mean of its divisors is an integer number (146182143).

Almost surely, 2^2601811325 is an apocalyptic number.

2601811325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2601811325 is a deficient number, since it is larger than the sum of its proper divisors (906560107).

2601811325 is a wasteful number, since it uses less digits than its factorization.

2601811325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165521 (or 165516 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 2601811325 is about 51007.9535464814. The cubic root of 2601811325 is about 1375.3881130289.

Adding to 2601811325 its reverse (5231181062), we get a palindrome (7832992387).

The spelling of 2601811325 in words is "two billion, six hundred one million, eight hundred eleven thousand, three hundred twenty-five".