25483409921 has 12 divisors (see below), whose sum is σ = 27084768000. Its totient is φ = 23971844160.

The previous prime is 25483409893. The next prime is 25483409927. The reversal of 25483409921 is 12990438452.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-25483409921 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25483409927) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 555656 + ... + 599766.

It is an arithmetic number, because the mean of its divisors is an integer number (2257064000).

Almost surely, 2^25483409921 is an apocalyptic number.

It is an amenable number.

25483409921 is a deficient number, since it is larger than the sum of its proper divisors (1601358079).

25483409921 is a wasteful number, since it uses less digits than its factorization.

25483409921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46144 (or 46127 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 25483409921 in words is "twenty-five billion, four hundred eighty-three million, four hundred nine thousand, nine hundred twenty-one".