51033202313 has 4 divisors (see below), whose sum is σ = 52792967940. Its totient is φ = 49273436688.

The previous prime is 51033202307. The next prime is 51033202327. The reversal of 51033202313 is 31320233015.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15913317904 + 35119884409 = 126148^2 + 187403^2 .

It is a cyclic number.

It is not a de Polignac number, because 51033202313 - 2¹² = 51033198217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51033202333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879882770 + ... + 879882827.

It is an arithmetic number, because the mean of its divisors is an integer number (13198241985).

Almost surely, 2^51033202313 is an apocalyptic number.

It is an amenable number.

51033202313 is a deficient number, since it is larger than the sum of its proper divisors (1759765627).

51033202313 is a wasteful number, since it uses less digits than its factorization.

51033202313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759765626.

The product of its (nonzero) digits is 1620, while the sum is 23.

Adding to 51033202313 its reverse (31320233015), we get a palindrome (82353435328).

The spelling of 51033202313 in words is "fifty-one billion, thirty-three million, two hundred two thousand, three hundred thirteen".