2601204005 has 8 divisors (see below), whose sum is σ = 3142395000. Its totient is φ = 2066996416.

The previous prime is 2601203971. The next prime is 2601204019. The reversal of 2601204005 is 5004021062.

It is a happy number.

It is a Cunningham number, because it is equal to 51002²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 1 + 2601204004 = 1^2 + 51002^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2601204005 - 2¹⁴ = 2601187621 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1745030 + ... + 1746519.

It is an arithmetic number, because the mean of its divisors is an integer number (392799375).

Almost surely, 2^2601204005 is an apocalyptic number.

It is an amenable number.

2601204005 is a deficient number, since it is larger than the sum of its proper divisors (541190995).

2601204005 is a wasteful number, since it uses less digits than its factorization.

2601204005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3491703.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2601204005 is about 51002.0000098035. Note that the first 5 decimals coincide. The cubic root of 2601204005 is about 1375.2810894204.

Adding to 2601204005 its reverse (5004021062), we get a palindrome (7605225067).

The spelling of 2601204005 in words is "two billion, six hundred one million, two hundred four thousand, five".