51265633 has 2 divisors, whose sum is σ = 51265634. Its totient is φ = 51265632.

The previous prime is 51265607. The next prime is 51265651. The reversal of 51265633 is 33656215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48553024 + 2712609 = 6968^2 + 1647^2 .

It is a cyclic number.

It is not a de Polignac number, because 51265633 - 2⁵ = 51265601 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51265595 and 51265604.

It is not a weakly prime, because it can be changed into another prime (51265603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25632816 + 25632817.

It is an arithmetic number, because the mean of its divisors is an integer number (25632817).

Almost surely, 2^51265633 is an apocalyptic number.

It is an amenable number.

51265633 is a deficient number, since it is larger than the sum of its proper divisors (1).

51265633 is an equidigital number, since it uses as much as digits as its factorization.

51265633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 31.

The square root of 51265633 is about 7160.0023044689. The cubic root of 51265633 is about 371.4857063348.

The spelling of 51265633 in words is "fifty-one million, two hundred sixty-five thousand, six hundred thirty-three".