51208000313 has 8 divisors (see below), whose sum is σ = 51740442600. Its totient is φ = 50675650560.

The previous prime is 51208000307. The next prime is 51208000339. The reversal of 51208000313 is 31300080215.

51208000313 = 160012² + 160013².

It can be written as a sum of positive squares in 4 ways, for example, as 25604160169 + 25603840144 = 160013^2 + 160012^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51208000313 - 2⁸ = 51208000057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51208000013) 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 7 ways as a sum of consecutive naturals, for example, 2009693 + ... + 2035013.

It is an arithmetic number, because the mean of its divisors is an integer number (6467555325).

Almost surely, 2^51208000313 is an apocalyptic number.

51208000313 is the 160013-rd centered square number.

It is an amenable number.

51208000313 is a deficient number, since it is larger than the sum of its proper divisors (532442287).

51208000313 is a wasteful number, since it uses less digits than its factorization.

51208000313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46267.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 51208000313 its reverse (31300080215), we get a palindrome (82508080528).

The spelling of 51208000313 in words is "fifty-one billion, two hundred eight million, three hundred thirteen", and thus it is an aban number.