51030233 has 2 divisors, whose sum is σ = 51030234. Its totient is φ = 51030232.

The previous prime is 51030223. The next prime is 51030263. The reversal of 51030233 is 33203015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50879689 + 150544 = 7133^2 + 388^2 .

It is a cyclic number.

It is not a de Polignac number, because 51030233 - 2¹² = 51026137 is a prime.

It is not a weakly prime, because it can be changed into another prime (51030223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25515116 + 25515117.

It is an arithmetic number, because the mean of its divisors is an integer number (25515117).

Almost surely, 2^51030233 is an apocalyptic number.

It is an amenable number.

51030233 is a deficient number, since it is larger than the sum of its proper divisors (1).

51030233 is an equidigital number, since it uses as much as digits as its factorization.

51030233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 17.

The square root of 51030233 is about 7143.5448483229. The cubic root of 51030233 is about 370.9162415084.

Adding to 51030233 its reverse (33203015), we get a palindrome (84233248).

The spelling of 51030233 in words is "fifty-one million, thirty thousand, two hundred thirty-three".