51268733 has 2 divisors, whose sum is σ = 51268734. Its totient is φ = 51268732.

The previous prime is 51268697. The next prime is 51268739. The reversal of 51268733 is 33786215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32924644 + 18344089 = 5738^2 + 4283^2 .

It is a cyclic number.

It is not a de Polignac number, because 51268733 - 2¹⁶ = 51203197 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51268693 and 51268702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51268739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25634366 + 25634367.

It is an arithmetic number, because the mean of its divisors is an integer number (25634367).

Almost surely, 2^51268733 is an apocalyptic number.

It is an amenable number.

51268733 is a deficient number, since it is larger than the sum of its proper divisors (1).

51268733 is an equidigital number, since it uses as much as digits as its factorization.

51268733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 51268733 is about 7160.2187815736. The cubic root of 51268733 is about 371.4931940181.

The spelling of 51268733 in words is "fifty-one million, two hundred sixty-eight thousand, seven hundred thirty-three".