51226562116 has 6 divisors (see below), whose sum is σ = 89646483710. Its totient is φ = 25613281056.

The previous prime is 51226562047. The next prime is 51226562137. The reversal of 51226562116 is 61126562215.

It can be written as a sum of positive squares in only one way, i.e., 30571123716 + 20655438400 = 174846^2 + 143720^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6403320261 + ... + 6403320268.

Almost surely, 2^51226562116 is an apocalyptic number.

It is an amenable number.

51226562116 is a deficient number, since it is larger than the sum of its proper divisors (38419921594).

51226562116 is a wasteful number, since it uses less digits than its factorization.

51226562116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12806640533 (or 12806640531 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

Subtracting 51226562116 from its reverse (61126562215), we obtain a palindrome (9900000099).

The spelling of 51226562116 in words is "fifty-one billion, two hundred twenty-six million, five hundred sixty-two thousand, one hundred sixteen".