51170005012211 has 4 divisors (see below), whose sum is σ = 51572918437632. Its totient is φ = 50767091586792.

The previous prime is 51170005012153. The next prime is 51170005012249. The reversal of 51170005012211 is 11221050007115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51170005012211 - 2²² = 51170000817907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51170005012111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201456712520 + ... + 201456712773.

It is an arithmetic number, because the mean of its divisors is an integer number (12893229609408).

Almost surely, 2^{51170005012211} is an apocalyptic number.

51170005012211 is a deficient number, since it is larger than the sum of its proper divisors (402913425421).

51170005012211 is a wasteful number, since it uses less digits than its factorization.

51170005012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402913425420.

The product of its (nonzero) digits is 700, while the sum is 26.

Adding to 51170005012211 its reverse (11221050007115), we get a palindrome (62391055019326).

The spelling of 51170005012211 in words is "fifty-one trillion, one hundred seventy billion, five million, twelve thousand, two hundred eleven".