51181041 has 16 divisors (see below), whose sum is σ = 71997440. Its totient is φ = 32250960.

The previous prime is 51181021. The next prime is 51181057. The reversal of 51181041 is 14018115.

It is a happy number.

It is not a de Polignac number, because 51181041 - 2¹⁷ = 51049969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51180999 and 51181017.

It is not an unprimeable number, because it can be changed into a prime (51181001) 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, 35256 + ... + 36678.

It is an arithmetic number, because the mean of its divisors is an integer number (4499840).

Almost surely, 2^51181041 is an apocalyptic number.

It is an amenable number.

51181041 is a deficient number, since it is larger than the sum of its proper divisors (20816399).

51181041 is a wasteful number, since it uses less digits than its factorization.

51181041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076.

The product of its (nonzero) digits is 160, while the sum is 21.

The square root of 51181041 is about 7154.0926049360. The cubic root of 51181041 is about 371.2812677584.

Adding to 51181041 its reverse (14018115), we get a palindrome (65199156).

The spelling of 51181041 in words is "fifty-one million, one hundred eighty-one thousand, forty-one".