51326845 has 8 divisors (see below), whose sum is σ = 61663320. Its totient is φ = 41014080.

The previous prime is 51326837. The next prime is 51326879. The reversal of 51326845 is 54862315.

It can be written as a sum of positive squares in 4 ways, for example, as 2968729 + 48358116 = 1723^2 + 6954^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51326845 - 2³ = 51326837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51326845.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 750 + ... + 10159.

It is an arithmetic number, because the mean of its divisors is an integer number (7707915).

Almost surely, 2^51326845 is an apocalyptic number.

It is an amenable number.

51326845 is a deficient number, since it is larger than the sum of its proper divisors (10336475).

51326845 is a wasteful number, since it uses less digits than its factorization.

51326845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11855.

The product of its digits is 28800, while the sum is 34.

The square root of 51326845 is about 7164.2756088805. The cubic root of 51326845 is about 371.6335008534.

The spelling of 51326845 in words is "fifty-one million, three hundred twenty-six thousand, eight hundred forty-five".