51333316 has 6 divisors (see below), whose sum is σ = 89833310. Its totient is φ = 25666656.

The previous prime is 51333299. The next prime is 51333329. The reversal of 51333316 is 61333315.

It can be written as a sum of positive squares in only one way, i.e., 50353216 + 980100 = 7096^2 + 990^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6416661 + ... + 6416668.

Almost surely, 2^51333316 is an apocalyptic number.

It is an amenable number.

51333316 is a deficient number, since it is larger than the sum of its proper divisors (38499994).

51333316 is a wasteful number, since it uses less digits than its factorization.

51333316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12833333 (or 12833331 counting only the distinct ones).

The product of its digits is 2430, while the sum is 25.

The square root of 51333316 is about 7164.7272104387. The cubic root of 51333316 is about 371.6491180178.

Subtracting 51333316 from its reverse (61333315), we obtain a palindrome (9999999).

The spelling of 51333316 in words is "fifty-one million, three hundred thirty-three thousand, three hundred sixteen".