21600041025 has 12 divisors (see below), whose sum is σ = 35712067952. Its totient is φ = 11520021840.

The previous prime is 21600041017. The next prime is 21600041059. The reversal of 21600041025 is 52014000612.

It is not a de Polignac number, because 21600041025 - 2³ = 21600041017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21600040992 and 21600041010.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144000199 + ... + 144000348.

Almost surely, 2^21600041025 is an apocalyptic number.

21600041025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21600041025 is a deficient number, since it is larger than the sum of its proper divisors (14112026927).

21600041025 is a wasteful number, since it uses less digits than its factorization.

21600041025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288000560 (or 288000555 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 21600041025 its reverse (52014000612), we get a palindrome (73614041637).

The spelling of 21600041025 in words is "twenty-one billion, six hundred million, forty-one thousand, twenty-five".