25321413516 has 48 divisors (see below), whose sum is σ = 67863129600. Its totient is φ = 7198329600.

The previous prime is 25321413443. The next prime is 25321413527. The reversal of 25321413516 is 61531412352.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 740685 + ... + 774116.

It is an arithmetic number, because the mean of its divisors is an integer number (1413815200).

Almost surely, 2^25321413516 is an apocalyptic number.

It is an amenable number.

25321413516 is an abundant number, since it is smaller than the sum of its proper divisors (42541716084).

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

25321413516 is a wasteful number, since it uses less digits than its factorization.

25321413516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515014 (or 1515012 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

Adding to 25321413516 its reverse (61531412352), we get a palindrome (86852825868).

The spelling of 25321413516 in words is "twenty-five billion, three hundred twenty-one million, four hundred thirteen thousand, five hundred sixteen".