51123833 has 2 divisors, whose sum is σ = 51123834. Its totient is φ = 51123832.

The previous prime is 51123817. The next prime is 51123841. The reversal of 51123833 is 33832115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51093904 + 29929 = 7148^2 + 173^2 .

It is a cyclic number.

It is not a de Polignac number, because 51123833 - 2⁴ = 51123817 is a prime.

It is a super-2 number, since 2×51123833² = 5227292601223778, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (51123803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25561916 + 25561917.

It is an arithmetic number, because the mean of its divisors is an integer number (25561917).

Almost surely, 2^51123833 is an apocalyptic number.

It is an amenable number.

51123833 is a deficient number, since it is larger than the sum of its proper divisors (1).

51123833 is an equidigital number, since it uses as much as digits as its factorization.

51123833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 51123833 is about 7150.0932161756. The cubic root of 51123833 is about 371.1428820261.

Adding to 51123833 its reverse (33832115), we get a palindrome (84955948).

It can be divided in two parts, 5 and 1123833, that multiplied together give a palindrome (5619165).

The spelling of 51123833 in words is "fifty-one million, one hundred twenty-three thousand, eight hundred thirty-three".