25123004001 has 12 divisors (see below), whose sum is σ = 37132709328. Its totient is φ = 16359165144.

The previous prime is 25123003991. The next prime is 25123004009. The reversal of 25123004001 is 10040032152.

It is not a de Polignac number, because 25123004001 - 2⁹ = 25123003489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25123004009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32458275 + ... + 32459048.

It is an arithmetic number, because the mean of its divisors is an integer number (3094392444).

Almost surely, 2^25123004001 is an apocalyptic number.

It is an amenable number.

25123004001 is a deficient number, since it is larger than the sum of its proper divisors (12009705327).

25123004001 is a wasteful number, since it uses less digits than its factorization.

25123004001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64917372 (or 64917369 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 25123004001 its reverse (10040032152), we get a palindrome (35163036153).

The spelling of 25123004001 in words is "twenty-five billion, one hundred twenty-three million, four thousand, one".