51223232215 has 16 divisors (see below), whose sum is σ = 62774015040. Its totient is φ = 40116947200.

The previous prime is 51223232189. The next prime is 51223232233.

51223232215 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51223232215 - 2⁵ = 51223232183 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 524899 + ... + 614788.

It is an arithmetic number, because the mean of its divisors is an integer number (3923375940).

Almost surely, 2^51223232215 is an apocalyptic number.

51223232215 is a deficient number, since it is larger than the sum of its proper divisors (11550782825).

51223232215 is a wasteful number, since it uses less digits than its factorization.

51223232215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139882.

The product of its digits is 7200, while the sum is 28.

The spelling of 51223232215 in words is "fifty-one billion, two hundred twenty-three million, two hundred thirty-two thousand, two hundred fifteen".