25205103021404 has 12 divisors (see below), whose sum is σ = 44856539275800. Its totient is φ = 12388948942608.

The previous prime is 25205103021391. The next prime is 25205103021409. The reversal of 25205103021404 is 40412030150252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25205103021409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53400641759 + ... + 53400642230.

It is an arithmetic number, because the mean of its divisors is an integer number (3738044939650).

Almost surely, 2^{25205103021404} is an apocalyptic number.

It is an amenable number.

25205103021404 is a deficient number, since it is larger than the sum of its proper divisors (19651436254396).

25205103021404 is a wasteful number, since it uses less digits than its factorization.

25205103021404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106801284052 (or 106801284050 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 25205103021404 its reverse (40412030150252), we get a palindrome (65617133171656).

The spelling of 25205103021404 in words is "twenty-five trillion, two hundred five billion, one hundred three million, twenty-one thousand, four hundred four".