51964313 has 4 divisors (see below), whose sum is σ = 52014900. Its totient is φ = 51913728.

The previous prime is 51964307. The next prime is 51964379. The reversal of 51964313 is 31346915.

51964313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31346915 = 5 ⋅6269383.

It can be written as a sum of positive squares in 2 ways, for example, as 37002889 + 14961424 = 6083^2 + 3868^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51964313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51964313.

It is not an unprimeable number, because it can be changed into a prime (51964513) 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 3 ways as a sum of consecutive naturals, for example, 23720 + ... + 25817.

It is an arithmetic number, because the mean of its divisors is an integer number (13003725).

Almost surely, 2^51964313 is an apocalyptic number.

It is an amenable number.

51964313 is a deficient number, since it is larger than the sum of its proper divisors (50587).

51964313 is a wasteful number, since it uses less digits than its factorization.

51964313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50586.

The product of its digits is 9720, while the sum is 32.

The square root of 51964313 is about 7208.6276779981. The cubic root of 51964313 is about 373.1657101632.

The spelling of 51964313 in words is "fifty-one million, nine hundred sixty-four thousand, three hundred thirteen".