51837145 has 16 divisors (see below), whose sum is σ = 63911232. Its totient is φ = 40340160.

The previous prime is 51837143. The next prime is 51837179. The reversal of 51837145 is 54173815.

It is a happy number.

It is not a de Polignac number, because 51837145 - 2¹ = 51837143 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 51837145.

It is not an unprimeable number, because it can be changed into a prime (51837143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98854 + ... + 99376.

It is an arithmetic number, because the mean of its divisors is an integer number (3994452).

Almost surely, 2^51837145 is an apocalyptic number.

It is an amenable number.

51837145 is a deficient number, since it is larger than the sum of its proper divisors (12074087).

51837145 is a wasteful number, since it uses less digits than its factorization.

51837145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032.

The product of its digits is 16800, while the sum is 34.

The square root of 51837145 is about 7199.8017333813. The cubic root of 51837145 is about 372.8610555666.

The spelling of 51837145 in words is "fifty-one million, eight hundred thirty-seven thousand, one hundred forty-five".