51001313 has 8 divisors (see below), whose sum is σ = 56064096. Its totient is φ = 46009600.

The previous prime is 51001303. The next prime is 51001367. The reversal of 51001313 is 31310015.

51001313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 51001313 - 2⁴ = 51001297 is a prime.

It is a super-2 number, since 2×51001313² = 5202267855447938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51001303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16256 + ... + 19137.

It is an arithmetic number, because the mean of its divisors is an integer number (7008012).

Almost surely, 2^51001313 is an apocalyptic number.

It is an amenable number.

51001313 is a deficient number, since it is larger than the sum of its proper divisors (5062783).

51001313 is a wasteful number, since it uses less digits than its factorization.

51001313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35535.

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 51001313 is about 7141.5203563387. The cubic root of 51001313 is about 370.8461593622.

Adding to 51001313 its reverse (31310015), we get a palindrome (82311328).

The spelling of 51001313 in words is "fifty-one million, one thousand, three hundred thirteen".