51225733 has 16 divisors (see below), whose sum is σ = 57702400. Its totient is φ = 45152640.

The previous prime is 51225731. The next prime is 51225737. The reversal of 51225733 is 33752215.

It is not a de Polignac number, because 51225733 - 2¹ = 51225731 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51225731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31033 + ... + 32641.

It is an arithmetic number, because the mean of its divisors is an integer number (3606400).

Almost surely, 2^51225733 is an apocalyptic number.

It is an amenable number.

51225733 is a deficient number, since it is larger than the sum of its proper divisors (6476667).

51225733 is a wasteful number, since it uses less digits than its factorization.

51225733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732.

The product of its digits is 6300, while the sum is 28.

The square root of 51225733 is about 7157.2154501594. The cubic root of 51225733 is about 371.3893056477.

Adding to 51225733 its reverse (33752215), we get a palindrome (84977948).

The spelling of 51225733 in words is "fifty-one million, two hundred twenty-five thousand, seven hundred thirty-three".