51777233 has 2 divisors, whose sum is σ = 51777234. Its totient is φ = 51777232.

The previous prime is 51777211. The next prime is 51777259. The reversal of 51777233 is 33277715.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44849809 + 6927424 = 6697^2 + 2632^2 .

It is a cyclic number.

It is not a de Polignac number, because 51777233 - 2⁶ = 51777169 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 = 51777193 and 51777202.

It is not a weakly prime, because it can be changed into another prime (51777133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25888616 + 25888617.

It is an arithmetic number, because the mean of its divisors is an integer number (25888617).

Almost surely, 2^51777233 is an apocalyptic number.

It is an amenable number.

51777233 is a deficient number, since it is larger than the sum of its proper divisors (1).

51777233 is an equidigital number, since it uses as much as digits as its factorization.

51777233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30870, while the sum is 35.

The square root of 51777233 is about 7195.6398603599. The cubic root of 51777233 is about 372.7173525436.

The spelling of 51777233 in words is "fifty-one million, seven hundred seventy-seven thousand, two hundred thirty-three".