51227733 has 12 divisors (see below), whose sum is σ = 69628160. Its totient is φ = 33501936.

The previous prime is 51227723. The next prime is 51227767. The reversal of 51227733 is 33772215.

51227733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51227733 - 2¹³ = 51219541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51227733.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51227723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5388 + ... + 11466.

Almost surely, 2^51227733 is an apocalyptic number.

51227733 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

51227733 is a deficient number, since it is larger than the sum of its proper divisors (18400427).

51227733 is an equidigital number, since it uses as much as digits as its factorization.

51227733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6188 (or 6135 counting only the distinct ones).

The product of its digits is 8820, while the sum is 30.

The square root of 51227733 is about 7157.3551679374. The cubic root of 51227733 is about 371.3941389538.

Adding to 51227733 its reverse (33772215), we get a palindrome (84999948).

The spelling of 51227733 in words is "fifty-one million, two hundred twenty-seven thousand, seven hundred thirty-three".