51044533 has 2 divisors, whose sum is σ = 51044534. Its totient is φ = 51044532.

The previous prime is 51044531. The next prime is 51044551. The reversal of 51044533 is 33544015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45995524 + 5049009 = 6782^2 + 2247^2 .

It is a cyclic number.

It is not a de Polignac number, because 51044533 - 2¹ = 51044531 is a prime.

Together with 51044531, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 51044498 and 51044507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51044531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25522266 + 25522267.

It is an arithmetic number, because the mean of its divisors is an integer number (25522267).

Almost surely, 2^51044533 is an apocalyptic number.

It is an amenable number.

51044533 is a deficient number, since it is larger than the sum of its proper divisors (1).

51044533 is an equidigital number, since it uses as much as digits as its factorization.

51044533 is an evil number, because the sum of its binary digits is even.

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

The square root of 51044533 is about 7144.5456818471. The cubic root of 51044533 is about 370.9508850688.

Adding to 51044533 its reverse (33544015), we get a palindrome (84588548).

The spelling of 51044533 in words is "fifty-one million, forty-four thousand, five hundred thirty-three".