25304315420 has 12 divisors (see below), whose sum is σ = 53139062424. Its totient is φ = 10121726160.

The previous prime is 25304315419. The next prime is 25304315441. The reversal of 25304315420 is 2451340352.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 632607866 + ... + 632607905.

It is an arithmetic number, because the mean of its divisors is an integer number (4428255202).

Almost surely, 2^25304315420 is an apocalyptic number.

25304315420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25304315420 is an abundant number, since it is smaller than the sum of its proper divisors (27834747004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25304315420 is a wasteful number, since it uses less digits than its factorization.

25304315420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265215780 (or 1265215778 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 25304315420 its reverse (2451340352), we get a palindrome (27755655772).

The spelling of 25304315420 in words is "twenty-five billion, three hundred four million, three hundred fifteen thousand, four hundred twenty".