25430502216 has 64 divisors (see below), whose sum is σ = 72826588800. Its totient is φ = 7249056768.

The previous prime is 25430502193. The next prime is 25430502221. The reversal of 25430502216 is 61220503452.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 102051 + ... + 247538.

It is an arithmetic number, because the mean of its divisors is an integer number (1137915450).

Almost surely, 2^25430502216 is an apocalyptic number.

It is an amenable number.

25430502216 is an abundant number, since it is smaller than the sum of its proper divisors (47396086584).

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

25430502216 is a wasteful number, since it uses less digits than its factorization.

25430502216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350038 (or 350034 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 25430502216 in words is "twenty-five billion, four hundred thirty million, five hundred two thousand, two hundred sixteen".