25044321604 has 48 divisors (see below), whose sum is σ = 46674544896. Its totient is φ = 11733321600.

The previous prime is 25044321583. The next prime is 25044321607. The reversal of 25044321604 is 40612344052.

It is a super-2 number, since 2×25044321604² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25044321607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1013314 + ... + 1037734.

It is an arithmetic number, because the mean of its divisors is an integer number (972386352).

Almost surely, 2^25044321604 is an apocalyptic number.

It is an amenable number.

25044321604 is a deficient number, since it is larger than the sum of its proper divisors (21630223292).

25044321604 is a wasteful number, since it uses less digits than its factorization.

25044321604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24676 (or 24674 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 25044321604 its reverse (40612344052), we get a palindrome (65656665656).

The spelling of 25044321604 in words is "twenty-five billion, forty-four million, three hundred twenty-one thousand, six hundred four".