51970333 has 2 divisors, whose sum is σ = 51970334. Its totient is φ = 51970332.

The previous prime is 51970319. The next prime is 51970439. The reversal of 51970333 is 33307915.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46758244 + 5212089 = 6838^2 + 2283^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51970333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51970295 and 51970304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51970313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25985166 + 25985167.

It is an arithmetic number, because the mean of its divisors is an integer number (25985167).

Almost surely, 2^51970333 is an apocalyptic number.

It is an amenable number.

51970333 is a deficient number, since it is larger than the sum of its proper divisors (1).

51970333 is an equidigital number, since it uses as much as digits as its factorization.

51970333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8505, while the sum is 31.

The square root of 51970333 is about 7209.0452211094. The cubic root of 51970333 is about 373.1801198654.

The spelling of 51970333 in words is "fifty-one million, nine hundred seventy thousand, three hundred thirty-three".