51202523042212 has 6 divisors (see below), whose sum is σ = 89604415323878. Its totient is φ = 25601261521104.

The previous prime is 51202523042191. The next prime is 51202523042263. The reversal of 51202523042212 is 21224032520215.

It can be written as a sum of positive squares in only one way, i.e., 44462143984036 + 6740379058176 = 6667994^2 + 2596224^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6400315380273 + ... + 6400315380280.

Almost surely, 2^{51202523042212} is an apocalyptic number.

It is an amenable number.

51202523042212 is a deficient number, since it is larger than the sum of its proper divisors (38401892281666).

51202523042212 is a wasteful number, since it uses less digits than its factorization.

51202523042212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12800630760557 (or 12800630760555 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 51202523042212 its reverse (21224032520215), we get a palindrome (72426555562427).

The spelling of 51202523042212 in words is "fifty-one trillion, two hundred two billion, five hundred twenty-three million, forty-two thousand, two hundred twelve".