51963133 has 6 divisors (see below), whose sum is σ = 53406906. Its totient is φ = 50557392.

The previous prime is 51963097. The next prime is 51963143. The reversal of 51963133 is 33136915.

It can be written as a sum of positive squares in 3 ways, for example, as 12687844 + 39275289 = 3562^2 + 6267^2 .

It is a de Polignac number, because none of the positive numbers 2^k-51963133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51963095 and 51963104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51963143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17610 + ... + 20347.

It is an arithmetic number, because the mean of its divisors is an integer number (8901151).

Almost surely, 2^51963133 is an apocalyptic number.

It is an amenable number.

51963133 is a deficient number, since it is larger than the sum of its proper divisors (1443773).

51963133 is an equidigital number, since it uses as much as digits as its factorization.

51963133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38031 (or 37994 counting only the distinct ones).

The product of its digits is 7290, while the sum is 31.

The square root of 51963133 is about 7208.5458311646. The cubic root of 51963133 is about 373.1628855396.

The spelling of 51963133 in words is "fifty-one million, nine hundred sixty-three thousand, one hundred thirty-three".