25231004 has 12 divisors (see below), whose sum is σ = 44686824. Its totient is φ = 12463344.

The previous prime is 25231001. The next prime is 25231039. The reversal of 25231004 is 40013252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25231001) 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 3 ways as a sum of consecutive naturals, for example, 37667 + ... + 38330.

It is an arithmetic number, because the mean of its divisors is an integer number (3723902).

Almost surely, 2^25231004 is an apocalyptic number.

It is an amenable number.

25231004 is a deficient number, since it is larger than the sum of its proper divisors (19455820).

25231004 is a wasteful number, since it uses less digits than its factorization.

25231004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76084 (or 76082 counting only the distinct ones).

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

The square root of 25231004 is about 5023.0472822780. The cubic root of 25231004 is about 293.2996270958.

Adding to 25231004 its reverse (40013252), we get a palindrome (65244256).

The spelling of 25231004 in words is "twenty-five million, two hundred thirty-one thousand, four".