51256033 has 2 divisors, whose sum is σ = 51256034. Its totient is φ = 51256032.

The previous prime is 51256031. The next prime is 51256081. The reversal of 51256033 is 33065215.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36869184 + 14386849 = 6072^2 + 3793^2 .

It is a cyclic number.

It is not a de Polignac number, because 51256033 - 2¹ = 51256031 is a prime.

Together with 51256031, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 51255989 and 51256007.

It is not a weakly prime, because it can be changed into another prime (51256031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25628016 + 25628017.

It is an arithmetic number, because the mean of its divisors is an integer number (25628017).

Almost surely, 2^51256033 is an apocalyptic number.

It is an amenable number.

51256033 is a deficient number, since it is larger than the sum of its proper divisors (1).

51256033 is an equidigital number, since it uses as much as digits as its factorization.

51256033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 51256033 is about 7159.3318822359. The cubic root of 51256033 is about 371.4625167553.

The spelling of 51256033 in words is "fifty-one million, two hundred fifty-six thousand, thirty-three".