51562323338 has 4 divisors (see below), whose sum is σ = 77343485010. Its totient is φ = 25781161668.

The previous prime is 51562323301. The next prime is 51562323361. The reversal of 51562323338 is 83332326515.

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

It can be written as a sum of positive squares in only one way, i.e., 51523098169 + 39225169 = 226987^2 + 6263^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51562323295 and 51562323304.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12890580833 + ... + 12890580836.

Almost surely, 2^51562323338 is an apocalyptic number.

51562323338 is a deficient number, since it is larger than the sum of its proper divisors (25781161672).

51562323338 is a wasteful number, since it uses less digits than its factorization.

51562323338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25781161671.

The product of its digits is 388800, while the sum is 41.

The spelling of 51562323338 in words is "fifty-one billion, five hundred sixty-two million, three hundred twenty-three thousand, three hundred thirty-eight".