25596480121 has 9 divisors (see below), whose sum is σ = 25804371333. Its totient is φ = 25390254300.

The previous prime is 25596480109. The next prime is 25596480127. The reversal of 25596480121 is 12108469552.

The square root of 25596480121 is 159989.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 25596480121 - 2⁵ = 25596480089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25596480127) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 22237896 + ... + 22239046.

Almost surely, 2^25596480121 is an apocalyptic number.

25596480121 is the 159989-th square number.

25596480121 is the 79995-th centered octagonal number.

It is an amenable number.

25596480121 is a deficient number, since it is larger than the sum of its proper divisors (207891212).

25596480121 is an frugal number, since it uses more digits than its factorization.

25596480121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580 (or 1290 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 25596480121 in words is "twenty-five billion, five hundred ninety-six million, four hundred eighty thousand, one hundred twenty-one".