25102312216 has 16 divisors (see below), whose sum is σ = 47068837200. Its totient is φ = 12550622304.

The previous prime is 25102312189. The next prime is 25102312237. The reversal of 25102312216 is 61221320152.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 192261 + ... + 295243.

It is an arithmetic number, because the mean of its divisors is an integer number (2941802325).

Almost surely, 2^25102312216 is an apocalyptic number.

It is an amenable number.

25102312216 is a deficient number, since it is larger than the sum of its proper divisors (21966524984).

25102312216 is a wasteful number, since it uses less digits than its factorization.

25102312216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133458 (or 133454 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 25102312216 its reverse (61221320152), we get a palindrome (86323632368).

The spelling of 25102312216 in words is "twenty-five billion, one hundred two million, three hundred twelve thousand, two hundred sixteen".