51025206216 has 16 divisors (see below), whose sum is σ = 127563015600. Its totient is φ = 17008402064.

The previous prime is 51025206209. The next prime is 51025206241. The reversal of 51025206216 is 61260252015.

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, 1063025106 + ... + 1063025153.

It is an arithmetic number, because the mean of its divisors is an integer number (7972688475).

Almost surely, 2^51025206216 is an apocalyptic number.

It is an amenable number.

51025206216 is an abundant number, since it is smaller than the sum of its proper divisors (76537809384).

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

51025206216 is a wasteful number, since it uses less digits than its factorization.

51025206216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126050268 (or 2126050264 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

The spelling of 51025206216 in words is "fifty-one billion, twenty-five million, two hundred six thousand, two hundred sixteen".