25321004 has 12 divisors (see below), whose sum is σ = 44380728. Its totient is φ = 12640800.

The previous prime is 25320991. The next prime is 25321013. The reversal of 25321004 is 40012352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1817 + ... + 7344.

It is an arithmetic number, because the mean of its divisors is an integer number (3698394).

Almost surely, 2^25321004 is an apocalyptic number.

It is an amenable number.

25321004 is a deficient number, since it is larger than the sum of its proper divisors (19059724).

25321004 is a wasteful number, since it uses less digits than its factorization.

25321004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9856 (or 9854 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 25321004 is about 5031.9980127182. The cubic root of 25321004 is about 293.6479504278.

Adding to 25321004 its reverse (40012352), we get a palindrome (65333356).

The spelling of 25321004 in words is "twenty-five million, three hundred twenty-one thousand, four".