25616233201 has 8 divisors (see below), whose sum is σ = 27665762600. Its totient is φ = 23577996672.

The previous prime is 25616233183. The next prime is 25616233229. The reversal of 25616233201 is 10233261652.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 971942976 + 24644290225 = 31176^2 + 156985^2 .

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 25616233201 - 2⁷ = 25616233073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25616233231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2818500 + ... + 2827573.

It is an arithmetic number, because the mean of its divisors is an integer number (3458220325).

Almost surely, 2^25616233201 is an apocalyptic number.

It is an amenable number.

25616233201 is a deficient number, since it is larger than the sum of its proper divisors (2049529399).

25616233201 is a wasteful number, since it uses less digits than its factorization.

25616233201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5646435.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 25616233201 its reverse (10233261652), we get a palindrome (35849494853).

The spelling of 25616233201 in words is "twenty-five billion, six hundred sixteen million, two hundred thirty-three thousand, two hundred one".