51254233 has 4 divisors (see below), whose sum is σ = 52221348. Its totient is φ = 50287120.

The previous prime is 51254207. The next prime is 51254239. The reversal of 51254233 is 33245215.

51254233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32867289 + 18386944 = 5733^2 + 4288^2 .

It is a cyclic number.

It is not a de Polignac number, because 51254233 - 2¹⁷ = 51123161 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51254198 and 51254207.

It is not an unprimeable number, because it can be changed into a prime (51254239) 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 3 ways as a sum of consecutive naturals, for example, 483478 + ... + 483583.

It is an arithmetic number, because the mean of its divisors is an integer number (13055337).

Almost surely, 2^51254233 is an apocalyptic number.

51254233 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

51254233 is a deficient number, since it is larger than the sum of its proper divisors (967115).

51254233 is an equidigital number, since it uses as much as digits as its factorization.

51254233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967114.

The product of its digits is 3600, while the sum is 25.

The square root of 51254233 is about 7159.2061710779. The cubic root of 51254233 is about 371.4581683868.

Adding to 51254233 its reverse (33245215), we get a palindrome (84499448).

It can be divided in two parts, 512 and 54233, that added together give a palindrome (54745).

The spelling of 51254233 in words is "fifty-one million, two hundred fifty-four thousand, two hundred thirty-three".